ob_get_contents

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

    ob_get_contents — Return the contents of the output buffer

    Descrizione

    ob_get_contents(): string|false

    Gets the contents of the output buffer without clearing it.

    Elenco dei parametri

    Questa funzione non contiene parametri.

    Valori restituiti

    This will return the contents of the output buffer or false, if output buffering isn't active.

    Esempi

    Example #1 A simple ob_get_contents() example

    <?php

    ob_start    ();

    echo     "Hello ";

    $out1 = ob_get_contents();

    echo     "World";

    $out2 = ob_get_contents();

    ob_end_clean();

    var_dump($out1, $out2);
    ?>

    Il precedente esempio visualizzerà:

    string(6) "Hello "
string(11) "Hello World"

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    User Contributed Notes 2 notes

    up
    10
    mauroasprea+php at gmail dot com
    14 years ago
    This is an example of how the stack works:<?php//Level 0ob_start();echo "Hello ";//Level 1ob_start();echo "Hello World";$out2 = ob_get_contents();ob_end_clean();//Back to level 0echo "Galaxy";$out1 = ob_get_contents();ob_end_clean();//Just outputvar_dump($out1, $out2);?>
    up
    8
    Mark Clements
    10 years ago
    Note that, unlike PHP variables which make efficient use of memory, getting the contents of the output buffer results in a new copy of the buffer being made.  This can end up massively increasing the memory requirements of your script if your output is large.Example code:<?phpprint(memory_get_usage() . "<br>");ob_start();for ($i = 0; $i < 5000000; $i++)    print(" ");print(memory_get_usage() . "<br>");$foo = ob_get_contents();print(memory_get_usage() . "<br>");ob_end_flush();?>Output:  351664 535915210359256
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