利用 WordPress 设置 API 添加选择设置页面

PetitQ WordPress教程 2022-4-30 845 0 0

本文介绍如何使用 WordPress 设置 API 创建一个简单的单选、列表选择、复选和媒体上传设置页面，并在设置菜单中添加链接菜单。

将代码添加到主题函数模板 functions.php 中。

单选

```
    function zm_demo_settings_radio() {
```

    	add_settings_section("section", "标题", null, "demo");

    	add_settings_field("demo-radio", "单选按钮演示", "zm_demo_radio_display", "demo", "section");

    	register_setting("section", "zm-demo-radio");

```
    }
```
```
 
```
```
    function zm_demo_radio_display() {
```
```
    	?>
```

    		<input type="radio" name="zm-demo-radio" value="1" <?php checked( 1, get_option( 'zm-demo-radio' ), true); ?>>1

    		<input type="radio" name="zm-demo-radio" value="2" <?php checked( 2, get_option( 'zm-demo-radio' ), true); ?>>2

```
    	<?php
```
```
    }
```
```
 
```

    add_action( "admin_init", "zm_demo_settings_radio" );

```
 
```
```
    function zm_demo_page() {
```
```
    	?>
```
```
    	<div class="wrap">
```
```
    		<h1>单选设置</h1>
```

    		<form method="post" action="options.php">

```
    			<?php
```
```
    				settings_fields( "section" );
```

     				do_settings_sections( "demo" );

```
    				submit_button();
```
```
    			?>
```
```
    		</form>
```
```
    	</div>
```
```
    	<?php
```
```
    }
```
```
 
```
```
    function zm_menu_item() {
```

    	add_submenu_page( "options-general.php", "单选设置", "单选设置", "manage_options", "demo", "zm_demo_page" );

```
    }
```
```
 
```

    add_action( "admin_menu", "zm_menu_item" );

也想出现在这里？联系我们吧

列表选择

```
    // 列表选择
```

    function zm_demo_settings_select() {

    	add_settings_section( "section", "标题", null, "demo" );

    	add_settings_field( "demo-select", "列表选择", "zm_demo_select_display", "demo", "section" );

    	register_setting( "section", "demo-select" );

```
    }
```
```
 
```
```
    function zm_demo_select_display() {
```
```
    	?>
```
```
    		<select name="demo-select">
```

    			<option value="qscutter" <?php selected( get_option( 'zm-demo-select' ), "qscutter" ); ?>>QScutter</option>

    			<option value="qnimate" <?php selected( get_option( 'zm-demo-select' ), "qnimate" ); ?>>QNimate</option>

    			<option value="qidea" <?php selected( get_option( 'zm-demo-select' ), "qidea" ); ?>>QIdea</option>

    			<option value="qtrack" <?php selected( get_option( 'zm-demo-select' ), "qtrack" ); ?>>QTrack</option>

```
    		</select>
```
```
    	<?php
```
```
    }
```
```
 
```

    add_action( "admin_init", "zm_demo_settings_select" );

```
 
```
```
    function zm_demo_page() {
```
```
    	?>
```
```
    		<div class="wrap">
```
```
    			<h1>列表选择</h1>
```

    			<form method="post" action="options.php">

```
    				<?php
```
```
    					settings_fields( "section" ); 
```

    					do_settings_sections( "demo" );

```
    					submit_button();
```
```
    				?>
```
```
    			</form>
```
```
    		</div>
```
```
    	<?php
```
```
    }
```
```
 
```
```
    function zm_menu_item_select() {
```

    	add_submenu_page( "options-general.php", "列表选择", "列表选择", "manage_options", "demo", "zm_demo_page" );

```
    }
```
```
 
```

    add_action( "admin_menu", "zm_menu_item_select" );

复选框

```
    // 复选框
```

    function zm_demo_settings_page_checkbox() {

    	add_settings_section( "section", "标题", null, "demo" );

    	add_settings_field( "demo-checkbox", "复选框", "zm_demo_checkbox_display", "demo", "section" );

    	register_setting( "section", "demo-checkbox" );

```
    }
```
```
 
```

    function zm_demo_checkbox_display() {

```
    	?>
```

    		<input type="checkbox" name="demo-checkbox" value="1" <?php checked( 1, get_option( 'zm-demo-checkbox' ), true ); ?> />

```
    	<?php
```
```
    }
```
```
 
```

    add_action( "admin_init", "zm_demo_settings_page_checkbox" );

```
 
```
```
    function zm_demo_page() {
```
```
    	?>
```
```
    		<div class="wrap">
```
```
    			<h1>复选框</h1>
```

    			<form method="post" action="options.php">

```
    				<?php
```
```
    					settings_fields( "section" );
```

    					do_settings_sections( "demo" );

```
    					submit_button();
```
```
    				?>
```
```
    			</form>
```
```
    		</div>
```
```
    	<?php
```
```
    }
```
```
 
```
```
    function zm_menu_item_checkbox() {
```

    	add_submenu_page( "options-general.php", "复选框", "复选框", "manage_options", "demo", "zm_demo_page" );

```
    }
```
```
 
```

    add_action( "admin_menu", "zm_menu_item_checkbox" );

媒体上传

```
    // 媒体上传
```

    function zm_demo_settings_page_file() {

    	add_settings_section( "section", "标题", null, "demo" );

    	add_settings_field( "demo-file", "媒体上传", "zm_demo_file_display", "demo", "section" );

    	register_setting( "section", "demo-file", "handle_file_upload" );

```
    }
```
```
 
```

    function handle_file_upload( $option ) {

    	if( !empty( $_FILES["demo-file"]["tmp_name"] ) ) {

    		$urls = wp_handle_upload( $_FILES["demo-file"], array( 'test_form' => FALSE ) );

```
    		$temp = $urls["url"];
```
```
    		return $temp;
```
```
    	}
```
```
    	return $option;
```
```
    }
```
```
 
```
```
    function zm_demo_file_display() {
```
```
    	?>
```

    		<input type="file" name="demo-file" />

    		<?php echo get_option( 'demo-file' ); ?>

```
    	<?php
```
```
    }
```
```
 
```

    add_action( "admin_init", "zm_demo_settings_page_file" );

```
 
```
```
    function zm_demo_page_file() {
```
```
    	?>
```
```
    		<div class="wrap">
```
```
    			<h1>媒体上传</h1>
```

    			<form method="post" action="options.php">

```
    				<?php
```
```
    					settings_fields("section");
```
```
    					do_settings_sections("demo");
```
```
    					submit_button();
```
```
    				?>
```
```
    			</form>
```
```
    		</div>
```
```
    	<?php
```
```
    }
```
```
 
```
```
    function zm_menu_item_file() {
```

    	add_submenu_page( "options-general.php", "媒体上传", "媒体上传", "manage_options", "demo", "zm_demo_page_file" );

```
    }
```

    add_action( "admin_menu", "zm_menu_item_file" );

设置存储在 wp_options 表中。

利用 WordPress 设置 API 添加选择设置页面

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