The str_contains Function

The str_contains function checks for the presence of a character in a string. It returns true if the character is found in the string, and false otherwise. The first parameter of the function is the string to search in. The second parameter specifies the desired character or substring.

Syntax

phpstr_contains(string $haystack, string $needle): bool

Example

Let's check if the string contains a specified character:

php<?php
  $str = 'abcde';
  $res = str_contains($str, 'a');
  
  var_dump($res);
?>

Code execution result:

phptrue

Example

Let's check if the string contains a specified substring:

php<?php
  $str = 'abcde';
  $res = str_contains($str, 'ab');
  
  var_dump($res);
?>

Code execution result:

phptrue

Example

Now let's search for the substring 'ac' in our string:

php<?php
  $str = 'abcde';
  $res = str_contains($str, 'ac');
  
  var_dump($res);
?>

Code execution result:

phpfalse

See Also