string to num php code example

Example 1: php string to int

intval($string);

Example 2: convert string to int php

s = "123";
echo intval(s); // 123

s = "hello";
echo intval(s);	//0

Example 3: cast string to int php

$num = "3.14"; 
$int = (int)$num;//string to int
$float = (float)$num;//string to float

Example 4: Convert a String to a Number in PHP

phpCopy<?php  
$variable = "45";
settype($variable, "integer");
echo "The variable has converted to a number and its value is $variable.";  
?>