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wp_generate_password ( $length = 12, $special_chars = true, $extra_special_chars = false )
wp_generate_password: 这个函数用来生成一个指定长度的随机密码。它把密码的长度作为一个参数,并返回生成的密码。
从定义的字符集中生成一个随机密码。
使用wp_rand()来创建密码,其可预测性远远低于类似的本地PHP函数如`rand()`或`mt_rand()`。
function wp_generate_password( $length = 12, $special_chars = true, $extra_special_chars = false ) { $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; if ( $special_chars ) { $chars .= '!@#$%^&*()'; } if ( $extra_special_chars ) { $chars .= '-_ []{}<>~`+=,.;:/?|'; } $password = ''; for ( $i = 0; $i < $length; $i++ ) { $password .= substr( $chars, wp_rand( 0, strlen( $chars ) - 1 ), 1 ); } /** * Filters the randomly-generated password. * * @since 3.0.0 * @since 5.3.0 Added the `$length`, `$special_chars`, and `$extra_special_chars` parameters. * * @param string $password The generated password. * @param int $length The length of password to generate. * @param bool $special_chars Whether to include standard special characters. * @param bool $extra_special_chars Whether to include other special characters. */ return apply_filters( 'random_password', $password, $length, $special_chars, $extra_special_chars ); } endif; if ( ! function_exists( 'wp_rand' ) ) : /** * Generates a random non-negative number. * * @since 2.6.2 * @since 4.4.0 Uses PHP7 random_int() or the random_compat library if available. * @since 6.1.0 Returns zero instead of a random number if both `$min` and `$max` are zero. * * @global string $rnd_value * * @param int $min Optional. Lower limit for the generated number. * Accepts positive integers or zero. Defaults to 0. * @param int $max Optional. Upper limit for the generated number. * Accepts positive integers. Defaults to 4294967295. * @return int A random non-negative number between min and max. */