convert string to int php

PHP
intval($string);intval("15");intval ( mixed $var [, int $base = 10 ] ) : ints = "123";
echo intval(s); // 123

s = "hello";
echo intval(s);	//0Using intval() and floatval() Function. The intval() and floatval() functions can also be used to convert the string into its corresponding integer and float values respectively. echo floatval ( $num );$num = "3.14";
$int = (int)$num;
Source

Also in PHP: