- str_replace: documentation ( source)
<?php
$x="
2013-09-04 18:33 - Gina sent text from agent that quote is $2 to early $2m\\\\\\\\\\\\\\\\\\\'s for Finch
2013-09-03 21:06 - AW sent off-market at 19 Essex Rd Surrey Hilla
2013-09-02 22:14 - G";
echo str_replace('\\', '', $x);
?>