$string='fdjborsnabcdtghrjosthabcrgrjtabc';$string= preg_replace('/[abc]+/i','',$string); 方法二 把字符串转化成数组 $arr=str_split($string);foreach($arras$key=>$value){if(in_array($value,array('a','b','c')) ){unset($arr[$key]); } }$string=implode('',$arr); 三、...
即将 原字符串中的所有"iwind"都替换成了"kiki".str_replace是大小写敏感的,所以对你不能设想用 str_replace("iwind", "kiki",...)替换原字符串中的"iwind". str_replace还可以实现多对一 定义和用法 str_replace() 函数使用一个字符串替换字符串中的另一些字符。 语法 str_replace(find,replace,string,c...
* @param $string * @return string */ function safe_replace($string) { $string = str_replace('%20','',$string); $string = str_replace('%27','',$string); $string = str_replace('%2527','',$string); $string = str_replace('*','',$string); $string = str_replace('"','&q...
$v.'', $string); } //处理之后 echo nl2br($string); str_replace()方法中的参数 有三种使用技巧 第一种: str_replace(string,string,string,替换次数); 代码如下: $string="online project php hosting user git includes php source-code php browser , php in-line editing wikis and tic...
convert_uudecode — 解密一个字符串 convert_uuencode — 加密一个字符串1 public function sub_string...
str_repeat() Repeats a string a specified number of times str_replace() Replaces some characters in a string (case-sensitive) str_rot13() Performs the ROT13 encoding on a string str_shuffle() Randomly shuffles all characters in a string str_split() Splits a string into an array str_...
Replace "Hello" with "world": <?php echosubstr_replace("Hello","world",0); ?> Try it Yourself » Definition and Usage The substr_replace() function replaces a part of a string with another string. Note:If the start parameter is a negative number and length is less than or equal ...
wordscut = '';if(strtolower($encoding) == 'utf-8') { //utf8编码 n = 0;tn = 0;noc = 0;while ($n < strlen($string)) { t = ord($string[$n]);if($t == 9 || $t == 10 || (32 <= $t && $t <= 126)) { tn = 1;n++;noc++;} elseif(194 <= $t ...
代码如下:function ProcessString($str,$start,$len){ $result=preg_replace("/[\D]/","",$str);//利用正则替换掉非数字内容 return substr($result,$start,$len); //利用substr进行字符截取}$str="b37ba964bb7dfab1869e1cf8";echo ProcessString($str,1,4); //7964 字符由零开始...
<?php $find = array("HELLO","WORLD"); // This function is case-insensitive $replace = array("B"); $arr = array("Hello","world","!"); print_r(str_ireplace($find,$replace,$arr)); ?> 运行实例 » PHP String 参考手册