extract( $_POST );
// determine whether phone number is valid and print
// an error message if not
if ( !@ereg( "^[0-9]{3}-[0-9]{7}$", $phone))
{
echo( "<SCRIPT LANGUAGE='JavaScript'>
window.alert('Please insert a valid phone number with (xxx-xxxxxxx) format.')
window.location.href='';
</SCRIPT>");
}
else if (!@preg_match('/^(?=.*'d{3,})(?=.*[A-Za-z]{5,})[0-9A-Za-z!@#$%]{8,32}$/', $pass))
{
echo("<SCRIPT LANGUAGE='JavaScript'>
window.alert('Password must be at least 8 characters long and must contain at least 1 number and 1 letter')
window.location.href='';
</SCRIPT>");
}
我不确定上面的编码有什么问题，但我似乎无法获得正确的密码值？它一直显示相同的错误消息
如果你在这些条件下正好追求 8 个字符，那么你将需要这样的东西：
else if (!@preg_match('/^(?=.*[a-z])(?=.*[A-Z])(?=.*'d)[a-zA-Z'd]{8}$/', $pass))
你的正则表达式是什么意思？
^(?=.*'d{3,})(?=.*[A-Za-z]{5,})[0-9A-Za-z!@#$%]{8,32}$
正则表达式细分
^ #Start of string
(?=.*'d{3,}) #Match at least 3 consecutive digits anywhere in string
(?=.*[A-Za-z]{5,}) #Match at least 5 consecutive characters from the set anywhere in string
[0-9A-Za-z!@#$%]{8,32} #Ensure that length of string is in between 8 and 32
$ #End of string
这将给出您想要的(根据您在问题中的描述(
(?=.{8,})(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9])
正则表达式细分
(?=.{8,}) #Ensure that string is of at least length 8
(?=.*[A-Z]) #Match a single capital letter anywhere in string
(?=.*[a-z]) #Match a single small letter anywhere in string
(?=.*'d) #Match a single digit anywhere in string