- strtr: documentation ( source)
- urldecode: documentation ( source)
- htmlspecialchars: documentation ( source)
<?php
echo strtr ( "baab" , "ab" , "01" ), "\n" ;
$trans = array( "ab" => "01" );
echo strtr ( "baab" , $trans );
echo htmlspecialchars('"$string', ENT_QUOTES);echo Urldecode('"hghg');