PHP: mb_encode_numericentity - Manual (original) (raw)

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)

mb_encode_numericentity — Encode character to HTML numeric string reference

Description

Parameters

string

The string being encoded.

map

map is array specifies code area to convert.

encoding

The encodingparameter is the character encoding. If it is omitted or [null](reserved.constants.php#constant.null), the internal character encoding value will be used.

hex

Whether the returned entity reference should be in hexadecimal notation (otherwise it is in decimal notation).

Return Values

The converted string.

Errors/Exceptions

Throws a ValueError ifmap is not a list of ints.

Changelog

Version	Description
8.4.0	mb_encode_numericentity() now throws aValueError if map is not a list of ints.
8.0.0	encoding is nullable now.

Examples

Example #1 map example

<?php
$convmap = array (
 int start_code1, int end_code1, int offset1, int mask1,
 int start_code2, int end_code2, int offset2, int mask2,
 ........
 int start_codeN, int end_codeN, int offsetN, int maskN );
// Specify Unicode value for start_codeN and end_codeN
// Add offsetN to value and take bit-wise 'AND' with maskN, then
// it converts value to numeric string reference.
?>

Example #2 mb_encode_numericentity() example

<?php

$str = "aAæÆあア𩸽";

/* Convert all UTF8 characters up to 4 bytes to HTML numeric character reference */
$convmap = [0, 0x1FFFFF, 0, 0x10FFFF];
var_dump(mb_encode_numericentity($str, $convmap, "utf8"));

/* Converts only 2-byte and 4-byte UTF8 characters to HTML numeric character reference */
$convmap = [
    0x80, 0x7FF, 0, 0x10FFFF,
    0x10000, 0x1FFFFF, 0, 0x10FFFF,
];
var_dump(mb_encode_numericentity($str, $convmap, "utf8"));
?>

The above example will output:

string(46) "aAæÆあア鸽" string(28) "aAæÆあア鸽"

Found A Problem?

Janis ¶

17 years ago

To get Unicode numbers out of a UTF-8 string, this can be used, for example:

<?php
print mb_encode_numericentity ('sāш日', array (0x0, 0xffff, 0, 0xffff), 'UTF-8');
?>

dan at boxuk dot com ¶

23 years ago

We were experiencing difficulties with PHP/Sablotron on Solaris; placing HTML character references into the XSL transformation, when set to output UTF-8, converts them back into UTF8 encoded chars.  This was then a problem for non unicode storage.  Using a bit of code from http://homepage.mac.com/marko/ the following function converts the string back to character references:

function utf2html ($utf2html_string)
{
    $f = 0xffff;
    $convmap = array(
/* <!ENTITY % HTMLlat1 PUBLIC "-//W3C//ENTITIES Latin 1//EN//HTML">
    %HTMLlat1; */
     160,  255, 0, $f,
/* <!ENTITY % HTMLsymbol PUBLIC "-//W3C//ENTITIES Symbols//EN//HTML">
    %HTMLsymbol; */
     402,  402, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>913</mn><mo separator="true">,</mo><mn>929</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f,  913,  929, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">913</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">929</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f,  931,  937, 0, $f,
     945,  969, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>977</mn><mo separator="true">,</mo><mn>978</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f,  977,  978, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">977</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">978</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f,  982,  982, 0, $f,
    8226, 8226, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8230</mn><mo separator="true">,</mo><mn>8230</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8230, 8230, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8230</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8230</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8242, 8243, 0, $f,
    8254, 8254, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8260</mn><mo separator="true">,</mo><mn>8260</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8260, 8260, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8260</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8260</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8465, 8465, 0, $f,
    8472, 8472, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8476</mn><mo separator="true">,</mo><mn>8476</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8476, 8476, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8476</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8476</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8482, 8482, 0, $f,
    8501, 8501, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8592</mn><mo separator="true">,</mo><mn>8596</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8592, 8596, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8592</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8596</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8629, 8629, 0, $f,
    8656, 8660, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8704</mn><mo separator="true">,</mo><mn>8704</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8704, 8704, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8704</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8704</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8706, 8707, 0, $f,
    8709, 8709, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8711</mn><mo separator="true">,</mo><mn>8713</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8711, 8713, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8711</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8713</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8715, 8715, 0, $f,
    8719, 8719, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8721</mn><mo separator="true">,</mo><mn>8722</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8721, 8722, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8721</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8722</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8727, 8727, 0, $f,
    8730, 8730, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8733</mn><mo separator="true">,</mo><mn>8734</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8733, 8734, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8733</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8734</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8736, 8736, 0, $f,
    8743, 8747, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8756</mn><mo separator="true">,</mo><mn>8756</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8756, 8756, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8756</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8756</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8764, 8764, 0, $f,
    8773, 8773, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8776</mn><mo separator="true">,</mo><mn>8776</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8776, 8776, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8776</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8776</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8800, 8801, 0, $f,
    8804, 8805, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8834</mn><mo separator="true">,</mo><mn>8836</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8834, 8836, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8834</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8836</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8838, 8839, 0, $f,
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/* These ones are excluded to enable HTML: 34, 38, 60, 62 */
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     710,  710, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>732</mn><mo separator="true">,</mo><mn>732</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f,  732,  732, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">732</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">732</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8194, 8195, 0, $f,
    8201, 8201, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8204</mn><mo separator="true">,</mo><mn>8207</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8204, 8207, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8204</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8207</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8211, 8212, 0, $f,
    8216, 8218, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8218</mn><mo separator="true">,</mo><mn>8218</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8218, 8218, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8218</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8218</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8220, 8222, 0, $f,
    8224, 8225, 0, <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo separator="true">,</mo><mn>8240</mn><mo separator="true">,</mo><mn>8240</mn><mo separator="true">,</mo><mn>0</mn><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">f, 8240, 8240, 0, </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:0.10764em;">f</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8240</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">8240</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord">0</span><span class="mpunct">,</span></span></span></span>f, 8249, 8250, 0, $f,
    8364, 8364, 0, $f);

    return mb_encode_numericentity($utf2html_string, $convmap, "UTF-8");
}

fboes at berlinonline dot de ¶

16 years ago

To improve handling of EURO-Symbols in dan at boxuk dot com's function add the following line to $convmap:

128,128,0, $f,