if condition in php array code example

Example 1: in_array php

<?php
$os = array("Apple", "Banana", "Lemon");
if (in_array("Apple", $os)) {
    echo "Yeah. Exist Apple";
}
if (!in_array("Buleberry", $os)) {
    echo "Oh, Don't Exist Blueberry!!!";
}
?>

Example 2: php check if item in array

$allowedFileType = ['application/vnd.ms-excel','text/xls','text/xlsx','application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'];
  
if(in_array($_FILES["file"]["type"],$allowedFileType))