Replace anything String (Sữa ký tự trong chuỗi )

<?php
$string = 'Here is your content with an image tag <img src=\"http://bavotasan.com/wp-content/themes/bavotasan_new/images/bavota.png" alt="Image" />' ;

$string = str_replace('\"',"b", "$string");

echo $string; // will output "Here is your content with an image tag" without the image tag
?>