更新元值不适用于 WordPress 中的序列化数据

Question

我想知道是否有人可以提供帮助。我正在尝试执行 php 查询来更新 Wordpress 上的帖子元值。 Pb ：字符串必须很长并且充满非正统字符，例如双引号。

结果有点奇怪，因为它得到了更新，但在值周围添加了另一个序列，破坏了它，如下所示：

s:5086:"a:28:{i:0;a:7:.....

这是最初的查询，如果有人能弄清楚如何使其合规，那就太棒了：

update_post_meta( $product_id, '_wc_booking_pricing', 'a:28:{i:0;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:5:"0.027";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"1";s:2:"to";s:1:"3";}i:1;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.02914814815";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"4";s:2:"to";s:1:"4";}i:2;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:12:"0.0312962963";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"5";s:2:"to";s:1:"5";}i:3;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.03344444444";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"6";s:2:"to";s:1:"6";}i:4;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.03559259259";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"7";s:2:"to";s:1:"7";}i:5;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.03774074074";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"8";s:2:"to";s:1:"8";}i:6;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.03988888889";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"9";s:2:"to";s:1:"9";}i:7;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.04203703704";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"10";s:2:"to";s:2:"10";}i:8;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.04418518519";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"11";s:2:"to";s:2:"11";}i:9;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.04633333333";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"12";s:2:"to";s:2:"12";}i:10;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.04848148148";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"13";s:2:"to";s:2:"13";}i:11;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.05062962963";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"14";s:2:"to";s:2:"14";}i:12;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.05277777778";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"15";s:2:"to";s:2:"15";}i:13;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.05492592593";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"16";s:2:"to";s:2:"16";}i:14;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.05707407407";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"17";s:2:"to";s:2:"17";}i:15;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.05922222222";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"18";s:2:"to";s:2:"18";}i:16;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.06137037037";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"19";s:2:"to";s:2:"19";}i:17;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.06351851852";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"20";s:2:"to";s:2:"20";}i:18;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.06566666667";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"21";s:2:"to";s:2:"21";}i:19;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.06781481481";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"22";s:2:"to";s:2:"22";}i:20;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.06996296296";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"23";s:2:"to";s:2:"23";}i:21;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.07211111111";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"24";s:2:"to";s:2:"24";}i:22;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.07425925926";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"25";s:2:"to";s:2:"25";}i:23;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.07640740741";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"26";s:2:"to";s:2:"26";}i:24;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.07855555556";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"27";s:2:"to";s:2:"27";}i:25;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:12:"0.0807037037";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"28";s:2:"to";s:2:"28";}i:26;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.08285185185";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"29";s:2:"to";s:2:"29";}i:27;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:5:"0.085";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"30";s:2:"to";s:2:"30";}}');

Answer 1

首先，值得注意的是，您不是在执行 PHP 查询，而是在使用 WordPress 函数 (update_post_meta) 来保存这些数据。这可能就是混乱所在。

您遇到的问题是您正在传递serialized 数据。在 WordPress 中，即使它以序列化数据的形式将数据存储在 DB 中，您也不必自己序列化/反序列化。

WordPress 存储“自动”序列化的数据。这意味着当您调用update_post_meta 时，您应该简单地传入您要保存的数组。

这是一个基于上述代码的最小示例：

$data = array(
    array(
        'type' => 'blocks',
        'cost' => NULL,
        'modifier' => NULL,
        'base_cost' => 0.027,
        'base_modifier] => 'times',
        'from' => 1,
        'to' => 3
    ),
    array(
        'type' => 'blocks',
        'cost' => NULL,
        'modifier' => NULL,
        'base_cost' => 0.02914814815,
        'base_modifier] => 'times',
        'from] => 4,
        'to] => 4
    )
);

update_post_meta( $product_id, '_wc_booking_pricing', $data );

然后，当您检索使用get_post_meta 的数据时，它将以数组的形式返回，与您保存时完全相同。

Answer 2

您尝试通过update_post_meta() 传递的字符串是序列化数据，需要先进行反序列化。

两种可能的情况：

1) 如果您已序列化该数据，请不要这样做，直接在update_post_meta() 中传递数据数组。

注意，当使用update_post_meta() 时，“传递的数组将被序列化为字符串”，因此在您的情况下，请避免一种会使您的数据无法读取的双重序列化。

2) 如果您自己没有序列化该数据，您可能需要先反序列化该数据。为此，您可以在使用update_post_meta()之前使用WordPress函数maybe_unserialize()，这样：

// Unserializing the data
$data = maybe_unserialize( 'a:28:{i:0;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:5:"0.027";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"1";s:2:"to";s:1:"3";}i:1;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.02914814815";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"4";s:2:"to";s:1:"4";}i:2;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:12:"0.0312962963";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"5";s:2:"to";s:1:"5";}i:3;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.03344444444";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"6";s:2:"to";s:1:"6";}i:4;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.03559259259";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"7";s:2:"to";s:1:"7";}i:5;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.03774074074";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"8";s:2:"to";s:1:"8";}i:6;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.03988888889";s:13:"base_modifier";s:5:"times";s:4:"from";s:1:"9";s:2:"to";s:1:"9";}i:7;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.04203703704";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"10";s:2:"to";s:2:"10";}i:8;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.04418518519";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"11";s:2:"to";s:2:"11";}i:9;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.04633333333";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"12";s:2:"to";s:2:"12";}i:10;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.04848148148";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"13";s:2:"to";s:2:"13";}i:11;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.05062962963";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"14";s:2:"to";s:2:"14";}i:12;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.05277777778";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"15";s:2:"to";s:2:"15";}i:13;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.05492592593";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"16";s:2:"to";s:2:"16";}i:14;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.05707407407";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"17";s:2:"to";s:2:"17";}i:15;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.05922222222";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"18";s:2:"to";s:2:"18";}i:16;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.06137037037";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"19";s:2:"to";s:2:"19";}i:17;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.06351851852";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"20";s:2:"to";s:2:"20";}i:18;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.06566666667";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"21";s:2:"to";s:2:"21";}i:19;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.06781481481";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"22";s:2:"to";s:2:"22";}i:20;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.06996296296";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"23";s:2:"to";s:2:"23";}i:21;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.07211111111";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"24";s:2:"to";s:2:"24";}i:22;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.07425925926";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"25";s:2:"to";s:2:"25";}i:23;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.07640740741";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"26";s:2:"to";s:2:"26";}i:24;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.07855555556";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"27";s:2:"to";s:2:"27";}i:25;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:12:"0.0807037037";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"28";s:2:"to";s:2:"28";}i:26;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:13:"0.08285185185";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"29";s:2:"to";s:2:"29";}i:27;a:7:{s:4:"type";s:6:"blocks";s:4:"cost";s:0:"";s:8:"modifier";s:0:"";s:9:"base_cost";s:5:"0.085";s:13:"base_modifier";s:5:"times";s:4:"from";s:2:"30";s:2:"to";s:2:"30";}}' );

// Saving the data
update_post_meta( $product_id, '_wc_booking_pricing', $data );

现在您的数据已正确保存在数据库中，可以读取和/或处理。