通过ajax发送数组到php。

Question

I'm storing an array and sending this via ajax...

var heart = [31,32,33,34,35,36,37,38,39,42,43];
// Sending this data via ajax to php file/ 
 $.ajax({
 type: "POST",
 data:{ 'system': heart }, 
 url: "login-function.php",
 success: function(msg){
 alert('yes');
}
});

I believe its sending correctly because i'm getting a alert saying yes. This is my php file:

$system = $_POST['system'];
echo $system;

Am I storing this into a variable right ? How can i echo this value onto the page?

Answer 1

you can use print_r( $system ); or use a foreach statement:

foreach ( $system as $itm ) {
    echo $itm . '<br />';
}

edit: echoing in PHP is only available for strings, intergers etc; not arrays or objects.