Pass php array to ajax

Question

I have this array:

    $users = array();
// Finally, loop over the results
foreach( $select as $email => $ip )
{
    $users[$email] = $ip;
}

Now i want to pass this array to ajax and print in another script:

$html="<center><a href=\"#\" id=\"check_spam\" onclick=\"$.ajax({type: 'POST', url: 'mcheck.php', data:'users=$users', success: function(data){ $('#results').html(data);}});\">Check users for spam</a></center>";

mcheck.php

echo $_POST['users'];

This code does not work. How can i do this?

You can not pass array to ajax you have to convert it to json format and then you can pass — Pankaj Makwana
– Pankaj Makwana, Commented Jun 22, 2017 at 13:37

Victor Dodon · Accepted Answer · 2017-06-22 13:47:08Z

2

As Sergiu Costas pointer out, the best way is to JSON encode it and then decode, but you can also try:

$html="<center><a href=\"#\" id=\"check_spam\" onclick=\"$.ajax({type: 'POST', url: 'mcheck.php', data: '" . http_build_query(array('users' => $users)) . "', success: function(data){ $('#results').html(data);}});\">Check users for spam</a></center>";

If your $users array is:

$users = array( array('email' => '[email protected]'), array('email' => '[email protected]')));

then http_build_query('users' => $users) will generate:

users%5B0%5D%5Bemail%5D=a%40email.com&users%5B1%5D%5Bemail%5D=b%40email.com

which is the url-encoded version of:

 users[0][email][email protected]&users[1][email][email protected]

which will be decoded back to array in mcheck.php

edited Jun 22, 2017 at 13:47

answered Jun 22, 2017 at 13:42

Victor Dodon

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Sergiu Costas · Accepted Answer · 2017-06-22 13:39:17Z

2

The Best way is to encode array into JSON format.

In PHP:

$users_json = json_encode($users);

// To decode in javascript

var obj = JSON.parse(json_str);

answered Jun 22, 2017 at 13:39

Sergiu Costas

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Riaz Laskar · Accepted Answer · 2017-06-22 13:39:44Z

0

if u want to pass php array to js you can json_encode the array to do that.

$html="<center><a href=\"#\" id=\"check_spam\" onclick=\"$.ajax({type: 'POST', url: 'mcheck.php', data:'users=".json_encode($users)."', success: function(data){ $('#results').html(data);}});\">Check users for spam</a></center>";

answered Jun 22, 2017 at 13:39

Riaz Laskar

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