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php的字符串格式化

  • 2020-04-23 04:16
  • 编程人生
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1.字符串的整理:chop(),itrim(),trim()trim()函数用来整理用户输入数据,如下显示:$name=trim($name);$email=trim($email);tirm()函数可以去除字符串开始位置和结束位置的空格,并将结果字符串返回。默认情况下去除换行符回车符(r)水平(t)和垂直制表符(x0B) 字符串结束符号()和空格。以下是来自于手册Without the second parameter, rtrim() will strip these characters: * (ASCII 32 (0x20)), an ordinary space. * t (ASCII 9 (0x09)), a tab. * n (ASCII 10 (0x0A)), a new line (line feed). * r (ASCII 13 (0x0D)), a carriage return. * (ASCII 0 (0x00)), the NUL-byte. * x0B (ASCII 11 (0x0B)), a vertical tabExample#1 Usage example of rtrim()?php$text = ttThese are a few words :) ... ;$binary = x09Example stringx0A;$hello = Hello World;var_dump($text, $binary, $hello);print n;$trimmed = rtrim($text);var_dump($trimmed);$trimmed = rtrim($text, t.);var_dump($trimmed);$trimmed = rtrim($hello, Hdle);var_dump($trimmed);// trim the ASCII control characters at the end of $binary// (from 0 to 31 inclusive)$clean = rtrim($binary, x00..x1F);var_dump($clean);?上例将输出:string(32) These are a few words :) ... string(16) Example stringstring(11) Hello Worldstring(30) These are a few words :) ...string(26) These are a few words :)string(9) Hello Worstring(15) Example string函数explode() implode() join()explode 使用一个字符串分割另一个字符串字符串的排序 strcmp() strcasecmp() strnatcmp()在字符串中查找字符串 strstr() strchr() strrchr() stristr()太多了,慢慢看手册<

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