Use in_array function to check if a value exists in an array using PHP
You can use in_array function to check if a value exists in an array:
For example:
<?php
$myname = "David";
$names = array("Paul","Maria","David","Lucy","Ana");
if (in_array($myname, $names))
echo("Welcome $myname");
else
echo "Sorry, that is not a valid name";
?>
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