php is int code example

Example 1: php is numeric

//is_numeric — Finds whether a variable is a number or a numeric string
is_numeric ( $variable ); // returns true or false

Example 2: php is variable a number

if(is_numeric($what_am_i)){
	//true
}

Example 3: php check if input is int

$a = 5; //returns true
$a = "5"; //returns false
$a = 5.3; //returns false
is_int($a);

Example 4: check input value is integer or not in php

// to check the input integer validation we can use is_int() function
Syntax:
is_int(parameter);

$x = 10; //returns true
$x = "123"; //returns false
$x = 12.365; //returns false
$x = "ankur"; //returns false
is_int($x);

Example 5: php check if string is integer

<?php
$strings = array('1820.20', '10002', 'wsl!12');
foreach ($strings as $testcase) {
    if (ctype_digit($testcase)) {
        echo "The string $testcase consists of all digits.\n";
    } else {
        echo "The string $testcase does not consist of all digits.\n";
    }
}
?>