How to use php in_array function

php in_array function is used to search whether there is a specified value in the array. Its syntax is in_array(search,array,type). The parameter search is required, which refers to the value to be searched in the array; array is required, which refers to the value to be searched. array.

How to use php in_array function?

Function: Search whether the specified value exists in the array.

Syntax:

in_array(search,array,type)

Parameters:

search Required. Specifies the value to search for in the array.

array Required. Specifies the array to search.

type Optional. If this parameter is set to true, it is checked whether the type of the searched data and the value of the array are the same.

Note:

If the search parameter is a string and the type parameter is set to TRUE, the search is case-sensitive.

php in_array() function usage example

<?php
$people = array("西门", "中文网", "灭绝", "无忌");
if (in_array("西门", $people))
{
    echo "已找到";
}
else
{
    echo "未找到";
}
?>

Output:

已找到

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