怎么指定邮箱可注册？ - WordPress 教程

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/*
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* WordPress注册邮箱白名单
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* https://www.npc.ink/19117.html
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*/
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function is_valid_email_domain($login, $email, $errors ){
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$valid_email_domains = array("gmail.com","qq.com");// 允许注册的邮箱信息
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$valid = false;
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foreach( $valid_email_domains as $d ){
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$d_length = strlen( $d );
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$current_email_domain = strtolower( substr( $email, -($d_length), $d_length));
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if( $current_email_domain == strtolower($d) ){
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$valid = true;
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break;
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}
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}
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// if invalid, return error message
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if( $valid === false ){
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$errors->add('domain_whitelist_error',__( '<strong>ERROR</strong>: 本站只支持gmail和QQ邮箱注册。' ));
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}
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}
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add_action('register_post', 'is_valid_email_domain',10,3 );

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$valid_email_domains = array("gmail.com","qq.com","163.com");// 允许注册的邮箱信息

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$errors->add('domain_whitelist_error',__( '<strong>ERROR</strong>: 本站只支持gmail和QQ邮箱注册。' ));