WordPress: Function Reference/get post custom keys:修订间差异
(新页面: == Description == Returns an array containing the keys of all custom fields of a particular post or page. See also get_post_custom() and ...) |
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== Description == | == Description == | ||
==描述== | |||
Returns an array containing the keys of all custom fields of a particular post or page. See also [[WordPress:Function_Reference/get_post_custom|get_post_custom()]] and [[WordPress:Function_Reference/get_post_custom_values|get_post_custom_values()]] | Returns an array containing the keys of all custom fields of a particular post or page. See also [[WordPress:Function_Reference/get_post_custom|get_post_custom()]] and [[WordPress:Function_Reference/get_post_custom_values|get_post_custom_values()]] | ||
返回一个数组,包含某篇文章或者网页的所有自定义fields。也看看[[WordPress:Function_Reference/get_post_custom|get_post_custom()]] 和[[WordPress:Function_Reference/get_post_custom_values|get_post_custom_values()]] | |||
== Usage == | == Usage == | ||
==用法== | |||
%%% <?php get_post_custom_keys($post_id); ?> %%% | |||
%%% <?php get_post_custom_keys($post_id); ?> %%% | %%% <?php get_post_custom_keys($post_id); ?> %%% | ||
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=== Default Usage === | === Default Usage === | ||
==例子== | |||
===默认用法=== | |||
The following example will set a variable (<tt>$custom_field_keys</tt>) as an array containing the keys of all custom fields in the current post, and then print it. | The following example will set a variable (<tt>$custom_field_keys</tt>) as an array containing the keys of all custom fields in the current post, and then print it. | ||
<pre><?php | |||
下面的例子会将一个变数(<tt>$custom_field_keys</tt>)设置为一个数组,包含当前文章的所有自定义fields的关键词,然后再输出。 | |||
<pre><?php | <pre><?php | ||
第26行: | 第43行: | ||
4 => _wp_page_template<br /> | 4 => _wp_page_template<br /> | ||
</div> | </div> | ||
$custom_field_keys = get_post_custom_keys(); | |||
foreach ( $custom_field_keys as $key => $value ) | |||
echo $key . " => " . $value . "<br />"; | |||
?></pre> | |||
如果文章包含关键字为 ''mykey'' and ''yourkey''的自定义field,输出就会是: | |||
<div style="border:1px solid blue; width:50%; margin: 20px; padding:20px"> | |||
0 => mykey<br /> | |||
1 => yourkey<br /> | |||
2 => _edit_last<br /> | |||
3 => _edit_lock<br /> | |||
4 => _wp_page_template<br /> | |||
</div> | |||
'''''Note:''' Regardless of how many values (custom fields) are assigned to one key, that key will only appear once in this array.'' | '''''Note:''' Regardless of how many values (custom fields) are assigned to one key, that key will only appear once in this array.'' | ||
'''''注:'''不管一个关键字分配了多少参数值(自定义fields),关键字在数组中只显示一次。'' | |||
== Parameters == | |||
== | ==参数== | ||
{{Parameter|$post_id|integer|The post ID whose custom field keys will be retrieved.|optional|Current post}} | {{Parameter|$post_id|integer|The post ID whose custom field keys will be retrieved.|optional|Current post}} | ||
{{Parameter|$post_id|integer|The post ID whose custom field keys will be retrieved.|optional|当前文章t}} | |||
== Related == | == Related == | ||
==相关的== | |||
[[WordPress:Function Reference/add post meta|add_post_meta()]], [[WordPress:Function Reference/delete post meta|delete_post_meta()]], [[WordPress:Function Reference/get post meta|get_post_meta()]], [[WordPress:Function Reference/update post meta|update_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/add post meta|add_post_meta()]], [[WordPress:Function Reference/delete post meta|delete_post_meta()]], [[WordPress:Function Reference/get post meta|get_post_meta()]], [[WordPress:Function Reference/update post meta|update_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/add post meta|add_post_meta()]], [[WordPress:Function Reference/delete post meta|delete_post_meta()]], [[WordPress:Function Reference/get post meta|get_post_meta()]], [[WordPress:Function Reference/update post meta|update_post_meta()]], [[WordPress:Function Reference/get post custom|get_post_custom()]], [[WordPress:Function Reference/get post custom values|get_post_custom_values()]] |
2008年7月19日 (六) 11:19的版本
Description
描述
Returns an array containing the keys of all custom fields of a particular post or page. See also get_post_custom() and get_post_custom_values()
返回一个数组,包含某篇文章或者网页的所有自定义fields。也看看get_post_custom() 和get_post_custom_values()
Usage
用法
%%% <?php get_post_custom_keys($post_id); ?> %%%
%%% <?php get_post_custom_keys($post_id); ?> %%%
Examples
Default Usage
例子
默认用法
The following example will set a variable ($custom_field_keys) as an array containing the keys of all custom fields in the current post, and then print it.
<?php 下面的例子会将一个变数(<tt>$custom_field_keys</tt>)设置为一个数组,包含当前文章的所有自定义fields的关键词,然后再输出。 <pre><?php $custom_field_keys = get_post_custom_keys(); foreach ( $custom_field_keys as $key => $value ) echo $key . " => " . $value . "<br />"; ?>
If the post contains custom fields with the keys mykey and yourkey, the output would be:
0 => mykey
1 => yourkey
2 => _edit_last
3 => _edit_lock
4 => _wp_page_template
$custom_field_keys = get_post_custom_keys(); foreach ( $custom_field_keys as $key => $value ) echo $key . " => " . $value . "
";
?>
如果文章包含关键字为 mykey and yourkey的自定义field,输出就会是:
0 => mykey
1 => yourkey
2 => _edit_last
3 => _edit_lock
4 => _wp_page_template
Note: Regardless of how many values (custom fields) are assigned to one key, that key will only appear once in this array. 注:不管一个关键字分配了多少参数值(自定义fields),关键字在数组中只显示一次。
Parameters
参数
Related
相关的
add_post_meta(), delete_post_meta(), get_post_meta(), update_post_meta(), get_post_custom(), get_post_custom_values()
add_post_meta(), delete_post_meta(), get_post_meta(), update_post_meta(), get_post_custom(), get_post_custom_values()