Answers for "php if text in string"

php find if string contains

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

php find if substring is in string

$result = strpos("haystack", "needle");

if ($result != false)
{
  // text found
}

if text contains word then in php

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