php separate numbers from string code example

Example 1: how to separate integer from string in php

phpCopy<?php 
$string = 'Sarah has 4_dolls  8_dolls and 6 bunnies.';
$int = (int) filter_var($string, FILTER_SANITIZE_NUMBER_INT);  
echo("The extracted numbers are: $int \n"); 
?>

Example 2: explode a number php

$nums = ""; //Declare a variable with empty set.

$nums .= $number; //concatenate the empty string with the integer $number You can also use

$nums = $nums.$number; // this and the expression above do the same thing choose whichever you
                     //like.. This concatenation automatically converts integer to string
$nums[0] is now 4, $nums[1] is now 5, etc..
$length = strlen($nums); // This is the length of your integer.
$target = strlen($nums) -1; // target the last digit in the string;    
$last_digit = $nums[$target]; // This is the value of 5. Last digit in the (now string)