How do we check if a string contains a specific word in PHP?

Solution for : How do we check if a string contains a specific word in PHP?

We can use the strpos() function which is used to find the occurrence of one string inside another one:

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

Note that the use of !== false is deliberate; strpos() returns either the offset at which the needle string begins in the haystack string, or the boolean false if the needle isn't found. Since 0 is a valid offset and 0 is "falsey", we can't use simpler constructs like !strpos($a, 'are').