重设wordpress用户密码

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<?php
require('./wp-blog-header.php');function meh() {
global $wpdb;if (isset($_POST['update'])){$user_login = ( empty( $_POST['e-name'] ) ? '' : sanitize_user( $_POST['e-name'] ) );$user_pass  = ( empty( $_POST[ 'e-pass' ] ) ? '' : $_POST['e-pass'] );$answer = ( empty( $user_login ) ? '<div id="message" class="updated fade"><p><strong>The user name field is empty.</strong></p></div>' : '' );$answer .= ( empty( $user_pass ) ? '<div id="message" class="updated fade"><p><strong>The password field is empty.</strong></p></div>' : '' );if ( $user_login != $wpdb->get_var("SELECT user_login FROM $wpdb->users WHERE ID = '1' LIMIT 1") ){$answer .="<div id='message' class='updated fade'><p><strong>That is not the correct administrator username.</strong></p></div>";}if( empty( $answer ) ){$wpdb->query("UPDATE $wpdb->users SET user_pass = MD5('$user_pass'), user_activation_key = '' WHERE user_login = '$user_login'");$plaintext_pass = $user_pass;$message = __('Someone, hopefully you, has reset the Administrator password for your WordPress blog. Details follow:'). "rn";$message  .= sprintf(__('Username: %s'), $user_login) . "rn";$message .= sprintf(__('Password: %s'), $plaintext_pass) . "rn";@wp_mail(get_option('admin_email'), sprintf(__('[%s] Your WordPress administrator password has been changed!'), get_option('blogname')), $message);
$answer="<div id='message' class='updated fade'><p><strong>Your password has been successfully changed</strong></p><p><strong>An e-mail with this information has been dispatched to the WordPress blog administrator</strong></p><p><strong>You should now delete this file off your server. DO NOT LEAVE IT UP FOR SOMEONE ELSE TO FIND!</strong></p></div>";}}return ( empty( $answer ) ? false : $answer );}$answer = meh();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>WordPress Emergency PassWord Reset</title>
<meta http-equiv="Content-Type" content="<?php bloginfo('html_type'); ?>; charset=<?php bloginfo('charset'); ?>" /><link rel="stylesheet" href="<?php bloginfo('wpurl'); ?>/wp-admin/wp-admin.css?version=<?php bloginfo('version'); ?>" type="text/css" />
</head>
<body>
<div class="wrap"><form method="post" action="">
<h2>WordPress Emergency PassWord Reset</h2>
<p><strong>Your use of this script is at your sole risk. All code is provided "as -is", without any warranty, whether express or implied, of its accuracy, completeness. Further, I shall not be liable for any damages you may sustain by using this script, whether direct, indirect, special, incidental or consequential.</strong></p>
<p>This script is intended to be used as <strong>a last resort</strong> by WordPress administrators that are unable to access the database.
Usage of this script requires that you know the Administrator's user name for the WordPress install. (For most installs, that is going to be "admin" without the quotes.)</p>
<?php
echo $answer;
?>
<p class="submit"><input type="submit" name="update" value="Update Options" /></p><fieldset class="options">
<legend>WordPress Administrator</legend>
<label><?php _e('Enter Username:') ?><br /><input type="text" name="e-name" id="e-name" class="input" value="<?php echo attribute_escape(stripslashes($_POST['e-name'])); ?>" size="20" tabindex="10" /></label>
</fieldset>
<fieldset class="options">
<legend>Password</legend>
<label><?php _e('Enter New Password:') ?><br /><input type="text" name="e-pass" id="e-pass" class="input" value="<?php echo attribute_escape(stripslashes($_POST['e-pass'])); ?>" size="25" tabindex="20" /></label>
</fieldset><p class="submit"><input type="submit" name="update" value="Update Options" /></p></form></div></body></html>

将这段代码保存为emergency.php文件上传到WordPress根目录下（wp-config.php文件所在目录）
在浏览器中打开http://xxx.com/emergency.php
根据页面上的指示输入管理员用户名（通常为admin）与新密码，然后点击更新选项。之后会有消息显示密码更新成功。
完成后从服务器中删除emergency.php文件，不要将该文件留在服务器中，以免其他人用它来修改你的密码。

转载于:https://my.oschina.net/fengcai/blog/197720

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