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插件在激活期間生成了2個字符的意外輸出。如果您發現「頭部已經發送」的消息，我的代碼如下我正在開發插件在激活時給出以下錯誤
<?php
/*
Plugin Name: configuration
Description: example plugin to demonstrate wordpress capatabilities
Author: kailash
License: Public Domain
*/
// run the install scripts upon plugin activation
function test_init() {
if(isset($_POST['save'])) {
$setting=$_POST['setting'];
global $wpdb;
$table_name ="setting";
$wpdb->query("UPDATE $table_name SET setting='$setting' WHERE id=1");
//echo"Setting Saved";
}
?>
<form name="form" id="myform" method="POST">
<input type="radio" name="setting" value="2" <?php if($setting==2){echo 'checked="checked"';}?> id="term"/>newconfiguration<br>
<input type="radio" name="setting" value="1" <?php if($setting==1){echo 'checked="checked"';}?> id="term"/>oldconfiguration<br>
<input type="submit" name="save" value="save">
<?php
}
add_action('admin_menu', 'config_plugin_setup_menu');
function config_plugin_setup_menu(){
add_menu_page('Test Plugin Page', 'configuration', 'manage_options', 'config-plugin', 'test_init');
}