check string in php code example

Example 1: how to check if a string contains a substring in php

$a = 'How are you?';

if (strpos($a, 'are') !== false) {
    echo 'true';
}

Example 2: php find if string contains

if (strpos($string, 'substring') !== false) {
	// do stuff 
}

Example 3: php is string

is_string($var)

Example 4: if text contains word then in php

if (strpos($haystack,$needle) !== false) {
    echo "$haystack contains $needle";
}

Example 5: php check if string contains a char

$haystack = 'This is my haystack that we shall check'
$has_A = strpos($haystack, 'A') !== false;
$has_a = strpos($haystack, 'a') !== false;

Example 6: check if string contains substring php 8

str_contains('STRING', 'SUB_STRING');