<?php/*** 截取内容中的数字，替换为其他* @param type $string* @param type $lengths* @param type $padString* @return boolean*/
function replace_numeral($string, $lengths = array(), $padString = '*') {if (!$string || !$lengths) {return false;}$lengths = !is_array($lengths) ? array($lengths) : $lengths;$pattern = $strings = array();rsort(&$lengths, SORT_NUMERIC);foreach ($lengths as $length) {preg_match_all('/\d{' . ((int) $length - 1) . '}[\d|x|X]/', $string, $matches);if (isset($matches[0]) && $matches[0]) {foreach ($matches[0] as $k => $v) {if ($v) {$pattern[$k] = '/' . $v . '/';$strings[$k] = $v ? str_pad($padString, $length - 4, $padString) . substr($v, -4, 4) : '';}}}$string = preg_replace($pattern, $strings, $string);}return $string;
}/*** 替换邮箱* @param type $string* @param type $length* @return boolean*/
function replace_mail($string, $length = 3) {if (!$string) {return false;}preg_match_all('/([a-z0-9]*[-_\.]?[a-z0-9]+)*@([a-z0-9]*[-_]?[a-z0-9]+)+[\.][a-z]{2,3}([\.][a-z]{2})?/', $string, $matches);foreach ($matches[0] as $k => $v) {if (isset($matches[0]) && $matches[0]) {foreach ($matches[0] as $k => $v) {if ($v) {$pattern[$k] = $v;$strings[$k] = substr_replace($v, str_pad('*', strpos($v, '@') - $length * 2, '*'), $length, strpos($v, '@') - $length * 2);}}}}$string = str_replace($pattern, $strings, $string);return ($string);
}/*** 替换车牌* @param type $string* @return type*/
function replace_vehicle_reg_no($string) {$arr_area = array('赣', '桂', '京', '津', '冀', '晋', '蒙', '辽', '吉','黑', '沪', '苏', '浙', '皖', '闽', '鲁', '豫', '鄂','湘', '粤', '琼', '渝', '川', '贵', '云', '藏', '陕','甘', '青', '宁', '新');foreach ($arr_area AS $k => $v) {preg_match_all('/' . $v . '[a-zA-Z]{1}[a-zA-Z0-9]{5}/', $string, $matches);if (isset($matches[0]) && $matches[0]) {foreach ($matches[0] as $va) {if ($va) {$pattern[$k] = '/' . $va . '/';$strings[$k] = substr_replace($va, '**', -4, 2);}}$string = preg_replace($pattern, $strings, $string);}}return $string;
}/*** 替换车架号* @param type $string* @param type $lengths* @param type $padString* @return boolean*/
function replace_vin($string) {if (!$string) {return false;}$pattern = $strings = array();preg_match_all('/[a-zA-Z0-9]{1,11}[0-9]{5}[\d|x|X]/', $string, $matches);if (isset($matches[0]) && $matches[0]) {foreach ($matches[0] as $k => $v) {if ($v) {$pattern[$k] = '/' . $v . '/';$strings[$k] = substr_replace($v, '******', 6, 5);}}}$string = preg_replace($pattern, $strings, $string);return $string;
}
?>

<?phpfunction unicode_encode($name) {$name = iconv('UTF-8', 'UCS-2', $name);$len = strlen($name);$str = '';for ($i = 0; $i < $len - 1; $i = $i + 2) {$c = $name[$i];$c2 = $name[$i + 1];if (ord($c) > 0) { // 两个字节的文字$str .= '\u' . base_convert(ord($c), 10, 16) . base_convert(ord($c2), 10, 16);} else {$str .= $c2;}}return $str;}function unicode_decode($name) {// 转换编码，将Unicode编码转换成可以浏览的utf-8编码$pattern = '/([\w]+)|(\\\u([\w]{4}))/i';preg_match_all($pattern, $name, $matches);if (!empty($matches)) {$name = '';for ($j = 0; $j < count($matches[0]); $j++) {$str = $matches[0][$j];if (strpos($str, '\\u') === 0) {$code = base_convert(substr($str, 2, 2), 16, 10);$code2 = base_convert(substr($str, 4), 16, 10);$c = chr($code) . chr($code2);$c = iconv('UCS-2', 'UTF-8', $c);$name .= $c;} else {$name .= $str;}}}return $name;}
?>