php字符串的操作
欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入 strim($str,""); 去除字符串两边的特殊字符 ltrim() 左 rtrim() 右 addslashes($str); 自动转移字符串,为特殊字符串加"\" 在插入数据库前使用 stripslashes($str); 对上面函数转义后的
欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入
strim($str,""); 去除字符串两边的特殊字符 ltrim() 左 rtrim() 右
addslashes($str); 自动转移字符串,为特殊字符串加"\" 在插入数据库前使用
stripslashes($str); 对上面函数转义后的字符串还原
addcslashes($str,"特定字符"); 对字符串中的特定字符转义,包括汉字
stripcslashes($str); 对上面的转义还原
strlen($str); 获取字符串的长度
substr($str,1,-4); 截取字符串,从第一个字符串开始到倒数第四个
strcmp($str1,$str2); 按字节比较字符串。相等返回0,1>2则返回值大于0,否则返回值小于0
strnatcmp($str1,$str2); 按自然排序法进行比较字符串中的数字部分 ,返回值同上
strncmp($str1,$str2,len); 比较字符串中的前N个字符
strstr($str,str); 检索字符串 在字符串$str中找到str首次出现的位置都后者末尾的子字符串 strchr($str,str); 从后往前检索
substr_count($str,str); 检索字串出现的次数
str_ireplace("原字符串","换后的字符串"$str); 替换字符(不区分大小写) str_replace() 区分大小写
explode("@",$str); 分割字符串
implode("@",$str_arr); 合成上面分割的字符串

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