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PHP in_array() Function

PHP in_array() Function

Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP in_array() Function.

The built-in in_array() function searches an array for a specific value.

Note: If the third parameter strict is set to TRUE then the in_array() function will also check the types of the $value.


Following below is the syntax to use this function -

in_array ( $value,  $array [,$strict ] );

Parameter Details

Sr.NoParameter & Description


The value to be search in array.



It specifies an array



If this parameter is set, the in_array() function searches for the search-string and specific type in the array.

Return Value

This PHP function returns TRUE if the value is found in the array or, FALSE otherwise.


Try out the below example -

   $mobile_os = array("Mac", "android", "java", "Linux");
   if (in_array("java", $mobile_os)) {
      echo "Got java";
   if (in_array("mac", $mobile_os)) {
      echo "Got mac";


When the above code is executed, it will produce the following result -

Got java

Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we are going to be discussing about the PHP key() Function.

Feel free to ask your questions where necessary and we will attend to them as soon as possible. If this tutorial was helpful to you, you can use the share button to share this tutorial.

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Thanks for reading and bye for now.

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