Online PHP editor | output for OaVcP

@ 2018-12-25T09:53:46Z

<?php
/**
 * replace only the first occurance of str math
 *
 */
function str_replace_first_only($from, $to, $content,$count)
{
    $from = '/'.preg_quote($from, '/').'/';
    return preg_replace($from, $to, $content, $count); // remove only first occurance
}

$patha = 'BIN/BIN/test.php';
$count = 1;
$pathb = str_replace_first_only('BIN', 'SYSTEM', $patha, $count);
echo $pathb;
?>

Output for 5.6.38, 7.0.33, 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7: SYSTEM/BIN/test.php
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 SYSTEM/BIN/test.php

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