add slash to string php code example

Example 1: addslashes php

$str = addslashes('What does "yolo" mean?');
echo($str);

Example 2: add slashes to string

str = str.replace(/'/g, "\\'");

Example 3: add slashes to string

<?php
$str = "O'Reilly?";
eval("echo '" . addslashes($str) . "';");
?>