Matt Matt - 4 months ago 9
PHP Question

Checking if all the array items are empty PHP

I'm adding an array of items from a form and if all of them are empty, I want to perform some validation and add to an error string. So I have:

$array = array(
'RequestID' => '$_POST["RequestID"]',
'ClientName' => '$_POST["ClientName"]',
'Username' => '$_POST["Username"]',
'RequestAssignee' => '$_POST["RequestAssignee"]',
'Status' => '$_POST["Status"]',
'Priority' => '$_POST["Priority"]'
);


And then if all of the array elements are empty perform:

$error_str .= '<li>Please enter a value into at least one of the fields regarding the request you are searching for.</li>';

Answer

You can just use the built in array_filter

If no callback is supplied, all entries of input equal to FALSE (see converting to boolean) will be removed.

So can do this in one simple line.

if(!array_filter($array)) {
    echo '<li>Please enter a value into at least one of the fields regarding the request you are searching for.</li>';
}
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