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HomeBackend DevelopmentPHP Tutorial密码:必须且只含有数字和字母,6-10位。正则表达式怎么写?

求解............


回复讨论(解决方案)

$pattern = '/^[a-zA-Z0-9]{6,10}$/';

$pattern = '/^[a-zA-Z0-9]{6,10}$/';


+1


$pattern = '/^[a-zA-Z0-9]{6,10}$/';


+1
++1

求解............


可能是我表述不清楚,必须要有数字和字母,数字和字母都要有。

$pattern = '/^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{6,10}$/';


分开来注释一下:
^ 匹配一行的开头位置
(?![0-9]+$) 预测该位置后面不全是数字
(?![a-zA-Z]+$) 预测该位置后面不全是字母
[0-9A-Za-z] {6,10} 由6-10位数字或这字母组成
$ 匹配行结尾位置

if(preg_match('/\d+/',$s) && preg_match('/[a-z]+/i',$s)){    echo 'yes';}else{   echo 'no';}

$pattern = '/^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{6,10}$/';


分开来注释一下:
^ 匹配一行的开头位置
(?![0-9]+$) 预测该位置后面不全是数字
(?![a-zA-Z]+$) 预测该位置后面不全是字母
[0-9A-Za-z] {6,10} 由6-10位数字或这字母组成
$ 匹配行结尾位置


谢谢!就是这个,借这个正则,多了解了下预查。
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