PHP: file - Manual (original) (raw)

(PHP 4, PHP 5, PHP 7, PHP 8)

file — Reads entire file into an array

Description

Note:

You can use file_get_contents() to return the contents of a file as a string.

Return Values

Returns the file in an array. Each element of the array corresponds to a line in the file, with the newline still attached. Upon failure,file() returns [false](reserved.constants.php#constant.false).

Note:

Each line in the resulting array will include the line ending, unless**[FILE_IGNORE_NEW_LINES](filesystem.constants.php#constant.file-ignore-new-lines)** is used.

Note: If PHP is not properly recognizing the line endings when reading files either on or created by a Macintosh computer, enabling theauto_detect_line_endingsrun-time configuration option may help resolve the problem.

Errors/Exceptions

As of PHP 8.3.0, throws a ValueError if flags includes any invalid values, such as [FILE_APPEND](filesystem.constants.php#constant.file-append).

Emits an [E_WARNING](errorfunc.constants.php#constant.e-warning) level error if the file does not exist.

Changelog

Version Description
8.3.0 ValueError is thrown for any invalid values of flags.

Examples

Example #1 file() example

<?php // Get a file into an array. In this example we'll go through HTTP to get // the HTML source of a URL. $lines = file('http://www.example.com/');// Loop through our array, show HTML source as HTML source; and line numbers too. foreach ($lines as <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>l</mi><mi>i</mi><mi>n</mi><msub><mi>e</mi><mi>n</mi></msub><mi>u</mi><mi>m</mi><mo>=</mo><mo>&gt;</mo></mrow><annotation encoding="application/x-tex">line_num =&gt; </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8444em;vertical-align:-0.15em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord mathnormal">in</span><span class="mord"><span class="mord mathnormal">e</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.1514em;"><span style="top:-2.55em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">n</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord mathnormal">u</span><span class="mord mathnormal">m</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=&gt;</span></span></span></span>line) { echo "Line #<b>{$line_num}</b> : " . htmlspecialchars($line) . "<br />\n"; }// Using the optional flags parameter $trimmed = file('somefile.txt', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES); ?>

Notes

Warning

When using SSL, Microsoft IIS will violate the protocol by closing the connection without sending aclose_notify indicator. PHP will report this as "SSL: Fatal Protocol Error" when you reach the end of the data. To work around this, the value of error_reporting should be lowered to a level that does not include warnings. PHP can detect buggy IIS server software when you open the stream using the https:// wrapper and will suppress the warning. When using fsockopen() to create anssl:// socket, the developer is responsible for detecting and suppressing this warning.

See Also

Found A Problem?

Martin K.

11 years ago

If the file you are reading is in CSV format do not use file(), use fgetcsv().  file() will split the file by each newline that it finds, even newlines that appear within a field (i.e. within quotations).

bingo at dingo dot com

12 years ago

To write all the lines of the file in other words to read the file line by line you can write the code like this:
<?php
$names=file('name.txt');
// To check the number of lines 
echo count($names).'<br>';
foreach($names as $name)
{
   echo $name.'<br>';
}
?>

this example is so basic to understand how it's working. I hope it will help many beginners.

Regards,
Bingo

d basin

16 years ago

this may be obvious, but it took me a while to figure out what I was doing wrong. So I wanted to share. I have a file on my "c:\" drive. How do I file() it? 

Don't forget the backslash is special and you have to "escape" the backslash i.e. "\\":

<?php

$lines = file("C:\\Documents and Settings\\myfile.txt");

foreach($lines as $line)
{
    echo($line);
}

?> 

hope this helps...

twichi at web dot de

14 years ago

read from CSV data (file) into an array with named keys

... with or without 1st row = header (keys) 
(see 4th parameter of function call as  true / false) 

<?php 
// --------------------------------------------------------------

function csv_in_array($url,$delm=";",$encl="\"",$head=false) { 
    
    <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>c</mi><mi>s</mi><mi>v</mi><mi>x</mi><mi>r</mi><mi>o</mi><mi>w</mi><mo>=</mo><mi>f</mi><mi>i</mi><mi>l</mi><mi>e</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">csvxrow = file(</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.4306em;"></span><span class="mord mathnormal">cs</span><span class="mord mathnormal">vx</span><span class="mord mathnormal">ro</span><span class="mord mathnormal" style="margin-right:0.02691em;">w</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal" style="margin-right:0.10764em;">f</span><span class="mord mathnormal">i</span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord mathnormal">e</span><span class="mopen">(</span></span></span></span>url);   // ---- csv rows to array ----
    
    <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>c</mi><mi>s</mi><mi>v</mi><mi>x</mi><mi>r</mi><mi>o</mi><mi>w</mi><mo stretchy="false">[</mo><mn>0</mn><mo stretchy="false">]</mo><mo>=</mo><mi>c</mi><mi>h</mi><mi>o</mi><mi>p</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">csvxrow[0] = chop(</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">cs</span><span class="mord mathnormal">vx</span><span class="mord mathnormal">ro</span><span class="mord mathnormal" style="margin-right:0.02691em;">w</span><span class="mopen">[</span><span class="mord">0</span><span class="mclose">]</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">c</span><span class="mord mathnormal">h</span><span class="mord mathnormal">o</span><span class="mord mathnormal">p</span><span class="mopen">(</span></span></span></span>csvxrow[0]); 
    <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>c</mi><mi>s</mi><mi>v</mi><mi>x</mi><mi>r</mi><mi>o</mi><mi>w</mi><mo stretchy="false">[</mo><mn>0</mn><mo stretchy="false">]</mo><mo>=</mo><mi>s</mi><mi>t</mi><msub><mi>r</mi><mi>r</mi></msub><mi>e</mi><mi>p</mi><mi>l</mi><mi>a</mi><mi>c</mi><mi>e</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">csvxrow[0] = str_replace(</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">cs</span><span class="mord mathnormal">vx</span><span class="mord mathnormal">ro</span><span class="mord mathnormal" style="margin-right:0.02691em;">w</span><span class="mopen">[</span><span class="mord">0</span><span class="mclose">]</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">s</span><span class="mord mathnormal">t</span><span class="mord"><span class="mord mathnormal" style="margin-right:0.02778em;">r</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.1514em;"><span style="top:-2.55em;margin-left:-0.0278em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight" style="margin-right:0.02778em;">r</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord mathnormal">e</span><span class="mord mathnormal" style="margin-right:0.01968em;">pl</span><span class="mord mathnormal">a</span><span class="mord mathnormal">ce</span><span class="mopen">(</span></span></span></span>encl,'',$csvxrow[0]); 
    <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>k</mi><mi>e</mi><mi>y</mi><mi>d</mi><mi>a</mi><mi>t</mi><mi>a</mi><mo>=</mo><mi>e</mi><mi>x</mi><mi>p</mi><mi>l</mi><mi>o</mi><mi>d</mi><mi>e</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">keydata = explode(</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8889em;vertical-align:-0.1944em;"></span><span class="mord mathnormal" style="margin-right:0.03148em;">k</span><span class="mord mathnormal" style="margin-right:0.03588em;">ey</span><span class="mord mathnormal">d</span><span class="mord mathnormal">a</span><span class="mord mathnormal">t</span><span class="mord mathnormal">a</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">e</span><span class="mord mathnormal">x</span><span class="mord mathnormal" style="margin-right:0.01968em;">pl</span><span class="mord mathnormal">o</span><span class="mord mathnormal">d</span><span class="mord mathnormal">e</span><span class="mopen">(</span></span></span></span>delm,$csvxrow[0]); 
    <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>k</mi><mi>e</mi><mi>y</mi><mi>n</mi><mi>u</mi><mi>m</mi><mi>b</mi><mo>=</mo><mi>c</mi><mi>o</mi><mi>u</mi><mi>n</mi><mi>t</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">keynumb = count(</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8889em;vertical-align:-0.1944em;"></span><span class="mord mathnormal" style="margin-right:0.03148em;">k</span><span class="mord mathnormal" style="margin-right:0.03588em;">ey</span><span class="mord mathnormal">n</span><span class="mord mathnormal">u</span><span class="mord mathnormal">mb</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">co</span><span class="mord mathnormal">u</span><span class="mord mathnormal">n</span><span class="mord mathnormal">t</span><span class="mopen">(</span></span></span></span>keydata); 
    
    if ($head === true) { 
    <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>a</mi><mi>n</mi><mi>z</mi><mi>d</mi><mi>a</mi><mi>t</mi><mi>a</mi><mo>=</mo><mi>c</mi><mi>o</mi><mi>u</mi><mi>n</mi><mi>t</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">anzdata = count(</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.6944em;"></span><span class="mord mathnormal">an</span><span class="mord mathnormal" style="margin-right:0.04398em;">z</span><span class="mord mathnormal">d</span><span class="mord mathnormal">a</span><span class="mord mathnormal">t</span><span class="mord mathnormal">a</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">co</span><span class="mord mathnormal">u</span><span class="mord mathnormal">n</span><span class="mord mathnormal">t</span><span class="mopen">(</span></span></span></span>csvxrow); 
    $z=0; 
    for($x=1; <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>x</mi><mo>&lt;</mo></mrow><annotation encoding="application/x-tex">x&lt;</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.5782em;vertical-align:-0.0391em;"></span><span class="mord mathnormal">x</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">&lt;</span></span></span></span>anzdata; $x++) { 
        <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>c</mi><mi>s</mi><mi>v</mi><mi>x</mi><mi>r</mi><mi>o</mi><mi>w</mi><mo stretchy="false">[</mo></mrow><annotation encoding="application/x-tex">csvxrow[</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">cs</span><span class="mord mathnormal">vx</span><span class="mord mathnormal">ro</span><span class="mord mathnormal" style="margin-right:0.02691em;">w</span><span class="mopen">[</span></span></span></span>x] = chop($csvxrow[$x]); 
        <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>c</mi><mi>s</mi><mi>v</mi><mi>x</mi><mi>r</mi><mi>o</mi><mi>w</mi><mo stretchy="false">[</mo></mrow><annotation encoding="application/x-tex">csvxrow[</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">cs</span><span class="mord mathnormal">vx</span><span class="mord mathnormal">ro</span><span class="mord mathnormal" style="margin-right:0.02691em;">w</span><span class="mopen">[</span></span></span></span>x] = str_replace($encl,'',$csvxrow[$x]); 
        <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>c</mi><mi>s</mi><msub><mi>v</mi><mi>d</mi></msub><mi>a</mi><mi>t</mi><mi>a</mi><mo stretchy="false">[</mo></mrow><annotation encoding="application/x-tex">csv_data[</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">cs</span><span class="mord"><span class="mord mathnormal" style="margin-right:0.03588em;">v</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.3361em;"><span style="top:-2.55em;margin-left:-0.0359em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">d</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord mathnormal">a</span><span class="mord mathnormal">t</span><span class="mord mathnormal">a</span><span class="mopen">[</span></span></span></span>x] = explode($delm,$csvxrow[$x]); 
        $i=0; 
        foreach($keydata as $key) { 
            <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>o</mi><mi>u</mi><mi>t</mi><mo stretchy="false">[</mo></mrow><annotation encoding="application/x-tex">out[</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">o</span><span class="mord mathnormal">u</span><span class="mord mathnormal">t</span><span class="mopen">[</span></span></span></span>z][$key] = <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>c</mi><mi>s</mi><msub><mi>v</mi><mi>d</mi></msub><mi>a</mi><mi>t</mi><mi>a</mi><mo stretchy="false">[</mo></mrow><annotation encoding="application/x-tex">csv_data[</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">cs</span><span class="mord"><span class="mord mathnormal" style="margin-right:0.03588em;">v</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.3361em;"><span style="top:-2.55em;margin-left:-0.0359em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">d</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord mathnormal">a</span><span class="mord mathnormal">t</span><span class="mord mathnormal">a</span><span class="mopen">[</span></span></span></span>x][$i]; 
            $i++;
            }    
        $z++;
        }
    }
    else { 
        $i=0;
        foreach($csvxrow as $item) { 
            <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>i</mi><mi>t</mi><mi>e</mi><mi>m</mi><mo>=</mo><mi>c</mi><mi>h</mi><mi>o</mi><mi>p</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">item = chop(</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.6595em;"></span><span class="mord mathnormal">i</span><span class="mord mathnormal">t</span><span class="mord mathnormal">e</span><span class="mord mathnormal">m</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">c</span><span class="mord mathnormal">h</span><span class="mord mathnormal">o</span><span class="mord mathnormal">p</span><span class="mopen">(</span></span></span></span>item); 
            <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>i</mi><mi>t</mi><mi>e</mi><mi>m</mi><mo>=</mo><mi>s</mi><mi>t</mi><msub><mi>r</mi><mi>r</mi></msub><mi>e</mi><mi>p</mi><mi>l</mi><mi>a</mi><mi>c</mi><mi>e</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">item = str_replace(</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.6595em;"></span><span class="mord mathnormal">i</span><span class="mord mathnormal">t</span><span class="mord mathnormal">e</span><span class="mord mathnormal">m</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">s</span><span class="mord mathnormal">t</span><span class="mord"><span class="mord mathnormal" style="margin-right:0.02778em;">r</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.1514em;"><span style="top:-2.55em;margin-left:-0.0278em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight" style="margin-right:0.02778em;">r</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord mathnormal">e</span><span class="mord mathnormal" style="margin-right:0.01968em;">pl</span><span class="mord mathnormal">a</span><span class="mord mathnormal">ce</span><span class="mopen">(</span></span></span></span>encl,'',$item); 
            <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>c</mi><mi>s</mi><msub><mi>v</mi><mi>d</mi></msub><mi>a</mi><mi>t</mi><mi>a</mi><mo>=</mo><mi>e</mi><mi>x</mi><mi>p</mi><mi>l</mi><mi>o</mi><mi>d</mi><mi>e</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">csv_data = explode(</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.7651em;vertical-align:-0.15em;"></span><span class="mord mathnormal">cs</span><span class="mord"><span class="mord mathnormal" style="margin-right:0.03588em;">v</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.3361em;"><span style="top:-2.55em;margin-left:-0.0359em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">d</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord mathnormal">a</span><span class="mord mathnormal">t</span><span class="mord mathnormal">a</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">e</span><span class="mord mathnormal">x</span><span class="mord mathnormal" style="margin-right:0.01968em;">pl</span><span class="mord mathnormal">o</span><span class="mord mathnormal">d</span><span class="mord mathnormal">e</span><span class="mopen">(</span></span></span></span>delm,$item); 
            for ($y=0; <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>y</mi><mo>&lt;</mo></mrow><annotation encoding="application/x-tex">y&lt;</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.7335em;vertical-align:-0.1944em;"></span><span class="mord mathnormal" style="margin-right:0.03588em;">y</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">&lt;</span></span></span></span>keynumb; $y++) { 
               <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>o</mi><mi>u</mi><mi>t</mi><mo stretchy="false">[</mo></mrow><annotation encoding="application/x-tex">out[</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">o</span><span class="mord mathnormal">u</span><span class="mord mathnormal">t</span><span class="mopen">[</span></span></span></span>i][$y] = <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>c</mi><mi>s</mi><msub><mi>v</mi><mi>d</mi></msub><mi>a</mi><mi>t</mi><mi>a</mi><mo stretchy="false">[</mo></mrow><annotation encoding="application/x-tex">csv_data[</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">cs</span><span class="mord"><span class="mord mathnormal" style="margin-right:0.03588em;">v</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.3361em;"><span style="top:-2.55em;margin-left:-0.0359em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">d</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord mathnormal">a</span><span class="mord mathnormal">t</span><span class="mord mathnormal">a</span><span class="mopen">[</span></span></span></span>y]; 
            }
        $i++;
        }
    }

return $out; 
}

// --------------------------------------------------------------

?>

fuction call with 4 parameters: 

(1) = the file with CSV data (url / string)
(2) = colum delimiter (e.g: ; or | or , ...)
(3) = values enclosed by (e.g: ' or " or ^ or ...)
(4) = with or without 1st row = head (true/false) 

<?php

// ----- call ------  <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>c</mi><mi>s</mi><mi>v</mi><mi>d</mi><mi>a</mi><mi>t</mi><mi>a</mi><mo>=</mo><mi>c</mi><mi>s</mi><msub><mi>v</mi><mi>i</mi></msub><msub><mi>n</mi><mi>a</mi></msub><mi>r</mi><mi>r</mi><mi>a</mi><mi>y</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">csvdata = csv_in_array( </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.6944em;"></span><span class="mord mathnormal">cs</span><span class="mord mathnormal" style="margin-right:0.03588em;">v</span><span class="mord mathnormal">d</span><span class="mord mathnormal">a</span><span class="mord mathnormal">t</span><span class="mord mathnormal">a</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">cs</span><span class="mord"><span class="mord mathnormal" style="margin-right:0.03588em;">v</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.3117em;"><span style="top:-2.55em;margin-left:-0.0359em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">i</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.1514em;"><span style="top:-2.55em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">a</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord mathnormal" style="margin-right:0.02778em;">rr</span><span class="mord mathnormal">a</span><span class="mord mathnormal" style="margin-right:0.03588em;">y</span><span class="mopen">(</span></span></span></span>yourcsvfile, ";", "\"", true ); 
// ----------------- 

// ----- view ------ 
echo "<pre>\r\n"; 
print_r($csvdata);
echo "</pre>\r\n"; 
// -----------------

?>

PS: also see: http://php.net/manual/de/function.fgetcsv.php to read CSV data into an array
... and other file-handling methods 

^

radler63 at hotmail dot com

7 years ago

My experience is that the function file does uses the cached content if the file has changed....

renanlazarotto at gmail dot com

4 years ago

Be aware that using file() to count lines can cause OOM on the server as it'll allocate all lines into an array.

If you're dealing with files that can have thousands of lines, SplFileObject might be a better idea and with little changes you can get the same result.

sheldon at hyperlinked dot com

6 years ago

As of PHP 5.6 the file(), file_get_contents(), and fopen() functions will return false if you are referencing a source URL that doesn't have a valid SSL certificate. Presumably, you will run into this a lot in your development environments this will drive you crazy. 

You will need to create a stream context and provide it as an argument to the various file operations to tell it to ignore invalid SSL credentials. 

$args = array("ssl"=>array("verify_peer"=>false,"verify_peer_name"=>false),"http"=>array('timeout' => 60, 'user_agent' => 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.9) Gecko/20071025 Firefox/3.0.0.1'));
 <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>c</mi><mi>o</mi><mi>n</mi><mi>t</mi><mi>e</mi><mi>x</mi><mi>t</mi><mo>=</mo><mi>s</mi><mi>t</mi><mi>r</mi><mi>e</mi><mi>a</mi><msub><mi>m</mi><mi>c</mi></msub><mi>o</mi><mi>n</mi><mi>t</mi><mi>e</mi><mi>x</mi><msub><mi>t</mi><mi>c</mi></msub><mi>r</mi><mi>e</mi><mi>a</mi><mi>t</mi><mi>e</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">context = stream_context_create(</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.6151em;"></span><span class="mord mathnormal">co</span><span class="mord mathnormal">n</span><span class="mord mathnormal">t</span><span class="mord mathnormal">e</span><span class="mord mathnormal">x</span><span class="mord mathnormal">t</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">s</span><span class="mord mathnormal">t</span><span class="mord mathnormal">re</span><span class="mord mathnormal">a</span><span class="mord"><span class="mord mathnormal">m</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.1514em;"><span style="top:-2.55em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">c</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord mathnormal">o</span><span class="mord mathnormal">n</span><span class="mord mathnormal">t</span><span class="mord mathnormal">e</span><span class="mord mathnormal">x</span><span class="mord"><span class="mord mathnormal">t</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.1514em;"><span style="top:-2.55em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">c</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord mathnormal">re</span><span class="mord mathnormal">a</span><span class="mord mathnormal">t</span><span class="mord mathnormal">e</span><span class="mopen">(</span></span></span></span>args); <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>h</mi><mi>t</mi><mi>t</mi><mi>p</mi><mi>f</mi><mi>i</mi><mi>l</mi><mi>e</mi><mo>=</mo><mi>f</mi><mi>i</mi><mi>l</mi><mi>e</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">httpfile = file(</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8889em;vertical-align:-0.1944em;"></span><span class="mord mathnormal">h</span><span class="mord mathnormal">ttp</span><span class="mord mathnormal" style="margin-right:0.10764em;">f</span><span class="mord mathnormal">i</span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord mathnormal">e</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal" style="margin-right:0.10764em;">f</span><span class="mord mathnormal">i</span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord mathnormal">e</span><span class="mopen">(</span></span></span></span>url, false, $context);