php检测邮箱密码 $pattern = "/^[0-9a-zA-Z_-]+(\.[0-9a-zA-Z_-]+)*@[a-zA-Z0-9_-]+(\.{1}[a-zA-Z0-9_-]+)*\.{1}[a-zA-Z]{2,4}$/i"; if(!preg_match($pattern,$email)){ echo "邮箱不符合规则"; } //$patternpwd = "/[A-Za-z]{6,15}/"; //$patternpwdnum = "/[0-9]{6,15}/"; $pa="/^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{6,16}$/";//字母数字不少于6位 if(!preg_match($pa,$pwd)){ echo "密码不符合规则"; }
