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get_user_id_from_string is deprecated since version 3.6.0!
Alternative: get_user_by()
Alternative: get_user_by()
get_user_id_from_string › WordPress Function
Since
已弃用3.6.0
› get_user_id_from_string ( $email_or_login )
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Get a numeric user ID from either an email address or a login.
A numeric string is considered to be an existing user ID and is simply returned as such.Related Functions: get_user_setting, get_post_format_string, get_post_format_strings, get_user_option, set_user_setting
源码
function get_user_id_from_string( $email_or_login ) { _deprecated_function( __FUNCTION__, '3.6.0', 'get_user_by()' ); if ( is_email( $email_or_login ) ) $user = get_user_by( 'email', $email_or_login ); elseif ( is_numeric( $email_or_login ) ) return $email_or_login; else $user = get_user_by( 'login', $email_or_login ); if ( $user ) return $user->ID; return 0; }