小编cus*_*OOM的帖子

任何人都可以告诉我在mysql中订购结果的问题

问题

不能通过距离以外的任何列进行排序

SELECT * , (
            (
            (
            ACOS( SIN( (
            '56.3168322' * PI( ) /180 ) ) * SIN( (
            `lat` * PI( ) /180 )
            ) + COS( (
            '56.3168322' * PI( ) /180 )
            ) * COS( (
            `lat` * PI( ) /180 )
            ) * COS( (
            (
            '-5.414989099999957' -  `lng`
            ) * PI( ) /180 )
            )
            )
            ) *180 / PI( )
            ) *60 * 1.1515 * 1.609344
            ) AS  `distance` 
            FROM  `incidents` …

使用 wp_handle_upload 函数时，它返回以下错误

 Array([error] => Specified file failed upload test.)

我使用的代码如下

function dc_form_image_upload() {
    if ( ! function_exists( 'wp_handle_upload' ) ) {
        require_once( ABSPATH . 'wp-admin/includes/file.php' );
    }

    $uploadedfile = $_POST['file'];
    //print_r($uploadedfile);
    // die();

    $upload_overrides = array( 'test_form' => false );

    $movefile = wp_handle_upload( $uploadedfile, $upload_overrides ); 

    if ( $movefile && !isset( $movefile['error'] ) ) {
        echo "File is valid, and was successfully uploaded.\n";
        var_dump( $movefile);
    } else {
        /**
         * Error generated by _wp_handle_upload()
         * @see _wp_handle_upload() in wp-admin/includes/file.php …