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字符串函数
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字符串函数

  1. <?php
  2. // stristr():忽略大小写版本
  3. $email = 'MYEMAIL@qq.com';
  4. echo stristr($email,'m').'<hr>';
  5. echo stristr($email,'a',true).'<hr>';
  6. // strrev():反转字符串
  7. echo strrev("hello world").'<hr>';
  8. // strtolower():转为小写
  9. $name = 'USERNAME';
  10. echo strtolower($name).'<hr>';
  11. // strtoupper():转为大写
  12. $name = 'abcdefc';
  13. echo strtoupper($name).'<hr>';
  14. // str_shuffle():随机打乱字符串
  15. $user = 'abcdefss';
  16. $num = str_shuffle($user);
  17. echo $num;

Correcting teacher:PHPzPHPz

Correction status:qualified

Teacher's comments:
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