$str = preg_replace("#eval#i", 'eval', $str); $str = preg_replace("#union#i", 'union', $str); $str = preg_replace("#concat#i", 'concat', $str); $str = preg_replace("#--#", '--', $str); $str = preg_replace("#[ ]{1,}#", ' ', $str); return $str; }els...
为了方便数据存储,php通常会将数组等数据转换为序列化形式存储,那么什么是序列化呢?序列化其实就是将数据转化成一种可逆的数据结构,自然,逆向的过程就叫做反序列化。 网上有一个形象的例子,这个例子会让我们深刻的记住序列化的目的是方便数据的传输和存储。而在PHP中,序列化和反序列化一般用做缓存,比如session缓存,...
That is EXACTLY the use case for "search" being a value and "replace" being an array. Considering that this is not only a real-world example but also part of a core PHP functionality I find it very strange that it's dismissed so easily here....
(sens|respons)e and \1ibility 将会匹配 ”sense and sensibility” 和”response and responsibility”, 而不会匹配 ”sense and responsibility” 2. 在PCRE函数中使用反向引用 <?php $str = 'abcdef'; $pattern = '/(.*)<\/b>(.*)<\/b>/'; $replace = preg_replace($pattern, '\\1', $str...
我们在查找的一个单词的时候,如an是否在一个字符串”gril and body”中存在,很明显如果匹配的话,an肯定是可以匹配字符串“gril and body”匹配到,怎样才能让其匹配单词,而不是单词的一部分呢?这时候,我们可以是哟个单词定界符\b。 \ban\b 去匹配”gril and body”的话,就会提示匹配不到。
Create an HTML file and paste the following code: In the main menu, go toEdit | Find | Replace Structurally. From theLanguagelist, selectHTML. Paste the following string to theSearch templatefield: <$tag$ $attribute$="$value$">
find函数里,会解析出options 跟入 继续跟进 在parseSql里会依此执行函数 发现在ThinkPHP/Library/Think/Db/Driver.class.php的函数parseWhere里 protected function parseWhere($where) {$whereStr = '';if(is_string($where)) {// 直接使用字符串条件$whereStr = $where;}else{ // 使用数组表达式$operate =...
Check the results in the preview area of the dialog where you can replace the search string or select another string, press CtrlShift0F again and start a new search. To see the list of occurrences in a separate tool window, click Open in Find Window. Use this window and its options to...
classtest{}$a = serialize(array(newtest,null));echo$a.'';$a = str_replace(':1',':0', $a);//将序列化的数组下标为0的元素给为nullecho$a; 得到 a:2:{i:0;O:4:"test":0:{}i:1;N;}a:2:{i:0;O:4:"test":0:{}i:0;N;}/...
public function insert(array $data = [], $replace = false, $getLastInsID = false, $sequence = null){// 分析查询表达式$options = $this->parseExpress();$data = array_merge($options['data'], $data);// 生成SQL语句$sql = $this->builder->insert($data, $options, $replace);... 跟进...