Print $_POST variable name along with value

If you just want to print the entire $_POST array to verify your data is being sent correctly, use print_r:

print_r($_POST);

To recursively print the contents of an array:

printArray($_POST);function printArray($array){     foreach ($array as $key => $value){        echo "$key => $value";        if(is_array($value)){ //If $value is an array, print it as well!            printArray($value);        }      } }

Apply some padding to nested arrays:

printArray($_POST);/* * $pad='' gives $pad a default value, meaning we don't have  * to pass printArray a value for it if we don't want to if we're * happy with the given default value (no padding) */function printArray($array, $pad=''){     foreach ($array as $key => $value){        echo $pad . "$key => $value";        if(is_array($value)){            printArray($value, $pad.' ');        }      } }

is_array returns true if the given variable is an array.

You can also use array_keys which will return all the string names.

You can have the foreach loop show the index along with the value:

foreach ($_POST as $key => $entry){     print $key . ": " . $entry . "<br>";}

As to the array checking, use the is_array() function:

foreach ($_POST as $key => $entry){     if (is_array($entry)) {        foreach($entry as $value) {           print $key . ": " . $value . "<br>";        }     } else {        print $key . ": " . $entry . "<br>";     }}

It's much better to use:

if (${'_'.$_SERVER['REQUEST_METHOD']}) {    $kv = array();    foreach (${'_'.$_SERVER['REQUEST_METHOD']} as $key => $value) {        $kv[] = "$key=$value";    }}