PHP数组以逗号分隔列表

问题描述：

I have a list of items from a database being parse in an array

Array
(
    [0] => Array
        (
            [dToken] => 731fea87ea9dc61f16e93f1ad2b964bf1926633acac151c1853ab91ea0465228
            [0] => 731fea87ea9dc61f16e93f1ad2b964bf1926633acac151c1853ab91ea0465228
        )

    [1] => Array
        (
            [dToken] => d890a5002f7da8bd35f6cae50e597d6f11554b26ba686bc7314afe77d1b36a61
            [0] => d890a5002f7da8bd35f6cae50e597d6f11554b26ba686bc7314afe77d1b36a61
        )

)

I need to get all of the dTokens and list them out in a variable with each dToken seperated by a comma except the last in the list.

foreach($result as $device['dToken'] => $token){
    //$devices = $token['dToken'];
    print_r($token['dToken']);
}

Any help please?

答

You're just about there.

$tokens = array();
foreach($result as $device){
    $tokens[] = $device['dToken'];
}
echo implode(',', $tokens);

答

To answer the question corresponding to the tile (transform an Array to a list with separator) use the implode function. To generate a CSV I would google php CSV, I'm sure there are already lots of function to do it.

答

callback = function($row){
    return $row['dToken'];
}

implode(",",array_map(callback,$result));

答

You could just build the string:

$cvsString = '';
$delimiter = '';
foreach($result as $device){
    $cvsString.= $delimiter . $device['dToken'];

    $delimiter = ',';
}

var_dump($cvsString);

Or you could first build in array:

$cvsArray = array();
foreach($result as $device){
    $cvsArray[] = $device['dToken'];
}

var_dump(implode(',', $cvsArray));

PHP数组以逗号分隔列表

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