preg_match in php
<?php
//Syntex : int preg_match( $pattern, $input, $matches, $flags, $offset)
// Declare a variable and initialize it
$str = "Check For Testing.";
// case-Insensitive search for the word "Check"
if (preg_match("/\bCheck\b/i", $str, $match))
echo "Matched!";
else
echo "not matched";
// Output : Matched
?>