PHP: Hypertext Preprocessor (original) (raw)

ibase_blob_get

(PHP 5, PHP 7 < 7.4.0)

ibase_blob_get — Get len bytes data from open blob

Description

This function returns at most len bytes from a BLOB that has been opened for reading by ibase_blob_open().

Note:

It is not possible to read from a BLOB that has been opened for writing by ibase_blob_create().

Parameters

blob_handle

A BLOB handle opened with ibase_blob_open().

len

Size of returned data.

Return Values

Returns at most len bytes from the BLOB, or [false](reserved.constants.php#constant.false) on failure.

Examples

Example #1 ibase_blob_get() example

<?php $result = ibase_query("SELECT blob_value FROM table"); <math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>d</mi><mi>a</mi><mi>t</mi><mi>a</mi><mo>=</mo><mi>i</mi><mi>b</mi><mi>a</mi><mi>s</mi><msub><mi>e</mi><mi>f</mi></msub><mi>e</mi><mi>t</mi><mi>c</mi><msub><mi>h</mi><mi>o</mi></msub><mi>b</mi><mi>j</mi><mi>e</mi><mi>c</mi><mi>t</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">data = ibase_fetch_object(</annotation></semantics></math>data=ibasefetchobject(result); <math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>b</mi><mi>l</mi><mi>o</mi><msub><mi>b</mi><mi>d</mi></msub><mi>a</mi><mi>t</mi><mi>a</mi><mo>=</mo><mi>i</mi><mi>b</mi><mi>a</mi><mi>s</mi><msub><mi>e</mi><mi>b</mi></msub><mi>l</mi><mi>o</mi><msub><mi>b</mi><mi>i</mi></msub><mi>n</mi><mi>f</mi><mi>o</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">blob_data = ibase_blob_info(</annotation></semantics></math>blobdata=ibaseblobinfo(data->BLOB_VALUE); <math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>b</mi><mi>l</mi><mi>o</mi><msub><mi>b</mi><mi>h</mi></msub><mi>n</mi><mi>d</mi><mi>l</mi><mo>=</mo><mi>i</mi><mi>b</mi><mi>a</mi><mi>s</mi><msub><mi>e</mi><mi>b</mi></msub><mi>l</mi><mi>o</mi><msub><mi>b</mi><mi>o</mi></msub><mi>p</mi><mi>e</mi><mi>n</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">blob_hndl = ibase_blob_open(</annotation></semantics></math>blobhndl=ibaseblobopen(data->BLOB_VALUE); echo ibase_blob_get($blob_hndl, $blob_data[0]); ?>

Whilst this example doesn't do much more than a 'ibase_blob_echo($data->BLOB_VALUE)' would do, it does show you how to get information into a $variable to manipulate as you please.

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