WordPress: Function Reference/get post meta：修订间差异
来自站长百科
（新页面: ==Description== This function returns the values of the custom fields with the specified key from the specified post. See also [[WordPress:Function Reference/update post meta|update_post_...） |
无编辑摘要 |
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==Description== | ==Description== | ||
==描述== | |||
This function returns the values of the custom fields with the specified key from the specified post. See also [[WordPress:Function Reference/update post meta|update_post_meta()]], [[WordPress:Function Reference/delete post meta|delete_post_meta()]] and [[WordPress:Function Reference/add post meta|add_post_meta()]]. | This function returns the values of the custom fields with the specified key from the specified post. See also [[WordPress:Function Reference/update post meta|update_post_meta()]], [[WordPress:Function Reference/delete post meta|delete_post_meta()]] and [[WordPress:Function Reference/add post meta|add_post_meta()]]. | ||
这个函数返回了自定义区的参数值，带有某篇文章的特别的key。也看看[[WordPress:Function Reference/update post meta|update_post_meta()]], [[WordPress:Function Reference/delete post meta|delete_post_meta()]] 和 [[WordPress:Function Reference/add post meta|add_post_meta()]]。 | |||
==Usage== | ==Usage== | ||
==用法== | |||
%%% <?php $meta_values = get_post_meta($post_id, $key, $single); ?> %%% | |||
%%% <?php $meta_values = get_post_meta($post_id, $key, $single); ?> %%% | %%% <?php $meta_values = get_post_meta($post_id, $key, $single); ?> %%% | ||
==Examples== | ==Examples== | ||
===Default Usage=== | ===Default Usage=== | ||
==例子== | |||
===默认用法=== | |||
<?php $key_1_values = get_post_meta(76, 'key_1'); ?> | <?php $key_1_values = get_post_meta(76, 'key_1'); ?> | ||
<?php $key_1_values = get_post_meta(76, 'key_1'); ?> | |||
===Other Example=== | ===Other Example=== | ||
===其它的例子=== | |||
To retrieve only the first value of a given key: | To retrieve only the first value of a given key: | ||
只返回所给key的第一个参数值： | |||
<?php $key_1_value = get_post_meta(76, 'key_1', true); ?> | <?php $key_1_value = get_post_meta(76, 'key_1', true); ?> | ||
<?php $key_1_value = get_post_meta(76, 'key_1', true); ?> | |||
For a more detailed example, go to the [[WordPress:Function Reference/post meta Function Examples|post_meta Functions Examples]] page. | For a more detailed example, go to the [[WordPress:Function Reference/post meta Function Examples|post_meta Functions Examples]] page. | ||
更详细的例子，请进入[[WordPress:Function Reference/post meta Function Examples|post_meta 函数例子]]网页。 | |||
==Parameters== | ==Parameters== | ||
==参数== | |||
{{Parameter|$post_id|integer|The ID of the post from which you want the data.}} | {{Parameter|$post_id|integer|The ID of the post from which you want the data.}} | ||
{{Parameter|$key|string|The key of the field you want.}} | {{Parameter|$key|string|The key of the field you want.}} | ||
{{Parameter|$single|boolean|Whether you want the function to return the first value of the specified key (''true''), or an array containing all values of the specified key (''false'')|optional|false}} | {{Parameter|$single|boolean|Whether you want the function to return the first value of the specified key (''true''), or an array containing all values of the specified key (''false'')|optional|false}} | ||
{{Parameter|$post_id|integer|你想要从中得到数据的文章的ID。}} | |||
{{Parameter|$key|string|你想要的区的key。}} | |||
{{Parameter|$single|boolean|你想要函数返回某个key的第一个参数值(''正确的'')，或者一个数组包含了某个key的所有参数值 (''false'')|optional|false}} | |||
==Return== | ==Return== | ||
==返回== | |||
* If <tt>$single</tt> is set to <tt>false</tt>, or left blank, the function returns an array containing all values of the specified key. | * If <tt>$single</tt> is set to <tt>false</tt>, or left blank, the function returns an array containing all values of the specified key. | ||
*如果<tt>$single</tt>设置为<tt>false</tt>，或者是空白的，函数返回一个数组，包含了某个key的所有参数值。 | |||
* If <tt>$single</tt> is set to <tt>true</tt>, the function returns the first value of the specified key (not in an array) | * If <tt>$single</tt> is set to <tt>true</tt>, the function returns the first value of the specified key (not in an array) | ||
*如果<tt>$single</tt> 设置为<tt>true</tt>，函数返回某个key的第一个参数值（不在一个数组中） | |||
==Related== | ==Related== | ||
==相关的== | |||
[[WordPress:Function Reference/update post meta|update_post_meta()]], [[WordPress:Function Reference/delete post meta|delete_post_meta()]], [[WordPress:Function Reference/add post meta|add_post_meta()]], [[WordPress:Function Reference/get post custom|get_post_custom()]], [[WordPress:Function Reference/get post custom values|get_post_custom_values()]], [[WordPress:Function Reference/get post custom keys|get_post_custom_keys()]] | |||
[[WordPress:Function Reference/update post meta|update_post_meta()]], [[WordPress:Function Reference/delete post meta|delete_post_meta()]], [[WordPress:Function Reference/add post meta|add_post_meta()]], [[WordPress:Function Reference/get post custom|get_post_custom()]], [[WordPress:Function Reference/get post custom values|get_post_custom_values()]], [[WordPress:Function Reference/get post custom keys|get_post_custom_keys()]] | [[WordPress:Function Reference/update post meta|update_post_meta()]], [[WordPress:Function Reference/delete post meta|delete_post_meta()]], [[WordPress:Function Reference/add post meta|add_post_meta()]], [[WordPress:Function Reference/get post custom|get_post_custom()]], [[WordPress:Function Reference/get post custom values|get_post_custom_values()]], [[WordPress:Function Reference/get post custom keys|get_post_custom_keys()]] | ||
2008年7月19日 (六) 10:53的版本
Description
描述
This function returns the values of the custom fields with the specified key from the specified post. See also update_post_meta(), delete_post_meta() and add_post_meta().
这个函数返回了自定义区的参数值，带有某篇文章的特别的key。也看看update_post_meta(), delete_post_meta() 和 add_post_meta()。
Usage
用法
%%% <?php $meta_values = get_post_meta($post_id, $key, $single); ?> %%%
%%% <?php $meta_values = get_post_meta($post_id, $key, $single); ?> %%%
Examples
Default Usage
例子
默认用法
<?php $key_1_values = get_post_meta(76, 'key_1'); ?>
<?php $key_1_values = get_post_meta(76, 'key_1'); ?>
Other Example
其它的例子
To retrieve only the first value of a given key: 只返回所给key的第一个参数值：
<?php $key_1_value = get_post_meta(76, 'key_1', true); ?>
<?php $key_1_value = get_post_meta(76, 'key_1', true); ?>
For a more detailed example, go to the post_meta Functions Examples page.
更详细的例子，请进入post_meta 函数例子网页。
Parameters
参数
Return
返回
- If $single is set to false, or left blank, the function returns an array containing all values of the specified key.
- 如果$single设置为false，或者是空白的，函数返回一个数组，包含了某个key的所有参数值。
- If $single is set to true, the function returns the first value of the specified key (not in an array)
- 如果$single 设置为true，函数返回某个key的第一个参数值（不在一个数组中）
Related
相关的
update_post_meta(), delete_post_meta(), add_post_meta(), get_post_custom(), get_post_custom_values(), get_post_custom_keys()
update_post_meta(), delete_post_meta(), add_post_meta(), get_post_custom(), get_post_custom_values(), get_post_custom_keys()