quotemeta

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Quote meta characters

quotemeta ( string $str ) : string

str

The input string.

Returns the string with meta characters quoted, or FALSE if an empty string is given as str.

<?

$str = "$ ^ * ( ) + [ ] \ . ?";

$return = quotemeta($str);
echo $return;

?>

\$ \^ \* \( \) \+ \[ \] \\ \. \?

PHP