PHP ob_start() function

This function is used to start output buffering. When this is turned on, instead of sending the data, it stores in the internal storage.

Syntax

ob_start();

This function returns a boolean value true on successful active the buffered data.

Example

<?php
    ob_start();
    echo $var = "Hello john";
    $data1 = ob_get_contents();
    echo $var1 = " How are you?";
    $data2 = ob_get_contents();
    ob_end_clean();
    var_dump($data1, $data2);
?>

Output -

string(10) "Hello john" string(23) "Hello john How are you?"



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