2

这个主题有一个错误, http://www.mafiashare.net/download/sound-rock-music-band-wordpress-theme/ 当我尝试激活它时,这会出现

( ! ) SCREAM: Error suppression ignored for
( ! ) Fatal error: Cannot re-assign auto-global variable _POST in C:\wamp\www\web\wp-content\themes\soundrock\functions.php on line 48
Call Stack
#   Time    Memory  Function    Location
1   0.0014  364560  {main}( )   ..\themes.php:0
2   0.0043  433520  require_once( 'C:\wamp\www\web\wp-admin\admin.php' )    ..\themes.php:10
3   0.0048  451648  require_once( 'C:\wamp\www\web\wp-load.php' )   ..\admin.php:30
4   0.0052  463256  require_once( 'C:\wamp\www\web\wp-config.php' ) ..\wp-load.php:29
5   0.0061  553312  require_once( 'C:\wamp\www\web\wp-settings.php' )   ..\wp-config.php:90

所以在第48行的functions.php中,我删除了这段代码,然后主题正在工作,但我想知道为什么它会抛出错误?

function events_meta_save($_POST, $post_id) {
    global $wpdb;
    if ( empty($_POST["event_social_sharing"]) ) $_POST["event_social_sharing"] = "";
    if ( empty($_POST["event_start_time"]) ) $_POST["event_start_time"] = "";
    if ( empty($_POST["event_end_time"]) ) $_POST["event_end_time"] = "";
    if ( empty($_POST["event_all_day"]) ) $_POST["event_all_day"] = "";
    if ( empty($_POST["event_booking_url"]) ) $_POST["event_booking_url"] = "";
    if ( empty($_POST["event_address"]) ) $_POST["event_address"] = "";
        $sxe = new SimpleXMLElement("<event></event>");
            $sxe->addChild('event_social_sharing', $_POST["event_social_sharing"] );
            $sxe->addChild('event_start_time', $_POST["event_start_time"] );
            $sxe->addChild('event_end_time', $_POST["event_end_time"] );
            $sxe->addChild('event_all_day', $_POST["event_all_day"] );
            $sxe->addChild('event_booking_url', $_POST["event_booking_url"] );
            $sxe->addChild('event_address', $_POST["event_address"] );
                $sxe = save_layout_xml($sxe);
        update_post_meta( $post_id, 'cs_event_meta', $sxe->asXML() );
}
4

2 回答 2

11

代替

function events_meta_save($_POST, $post_id) {
    global $wpdb;
    if ( empty($_POST["event_social_sharing"]) ) $_POST["event_social_sharing"] = "";
    ....
    ....

function events_meta_save($_my_post, $post_id) {
    global $wpdb;
    if ( empty($_my_post["event_social_sharing"]) ) $_POST["event_social_sharing"] = "";
    ....
    ....

不要忘记将$_POST条件内的ALL 替换为您$_my_post喜欢的任何其他名称

原因,如其他答案中所述:

您不能将 $_POST 用作函数/方法参数

. 这样做会尝试重新分配符号表中的变量。将此视为该语言的已保存关键字。将它放在函数签名中就像使用语言的关键字作为变量名来定义新变量。

于 2013-01-25T03:18:03.470 回答
0

@snjflame,您不需要$_POST用作函数的参数,因为它是一个超全局变量。你不能重新定义$_POST变量;您需要在函数开头为变量定义一个“ handler”并在下面使用它。$_POST

例如:

<?php
    function events_meta_save( $post_id ) {
        global $wpdb;
        $post = $_POST;
        if ( empty($post["event_social_sharing"]) ) $post["event_social_sharing"] = "";
        if ( empty($post["event_start_time"]) ) $post["event_start_time"] = "";
        if ( empty($post["event_end_time"]) ) $post["event_end_time"] = "";
        if ( empty($post["event_all_day"]) ) $post["event_all_day"] = "";
        if ( empty($post["event_booking_url"]) ) $post["event_booking_url"] = "";
        if ( empty($post["event_address"]) ) $post["event_address"] = "";
        $sxe = new SimpleXMLElement("<event></event>");
            $sxe->addChild('event_social_sharing', $post["event_social_sharing"] );
            $sxe->addChild('event_start_time', $post["event_start_time"] );
            $sxe->addChild('event_end_time', $post["event_end_time"] );
            $sxe->addChild('event_all_day', $post["event_all_day"] );
            $sxe->addChild('event_booking_url', $post["event_booking_url"] );
            $sxe->addChild('event_address', $post["event_address"] );
        $sxe = save_layout_xml($sxe);
        update_post_meta( $post_id, 'cs_event_meta', $sxe->asXML() );
    }
?>
于 2017-07-28T15:14:37.983 回答