使用php/regex验证美国电话号码 [英] Validating US phone number with php/regex
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问题描述
我混合并修改了以下给出的两个答案，以形成完整的功能，该功能现在可以执行我想要的操作，然后执行某些操作...因此，我想出了d将其张贴在此处，以防其他人来寻找相同的东西.
/*
* Function to analyze string against many popular formatting styles of phone numbers
* Also breaks phone number into it's respective components
* 3-digit area code, 3-digit exchange code, 4-digit subscriber number
* After which it validates the 10 digit US number against NANPA guidelines
*/
function validPhone($phone) {
$format_pattern = '/^(?:(?:\((?=\d{3}\)))?(\d{3})(?:(?<=\(\d{3})\))?[\s.\/-]?)?(\d{3})[\s\.\/-]?(\d{4})\s?(?:(?:(?:(?:e|x|ex|ext)\.?\:?|extension\:?)\s?)(?=\d+)(\d+))?$/';
$nanpa_pattern = '/^(?:1)?(?(?!(37|96))[2-9][0-8][0-9](?<!(11)))?[2-9][0-9]{2}(?<!(11))[0-9]{4}(?<!(555(01([0-9][0-9])|1212)))$/';
//Set array of variables to false initially
$valid = array(
'format' => false,
'nanpa' => false,
'ext' => false,
'all' => false
);
//Check data against the format analyzer
if(preg_match($format_pattern, $phone, $matchset)) {
$valid['format'] = true;
}
//If formatted properly, continue
if($valid['format']) {
//Set array of new components
$components = array(
'ac' => $matchset[1], //area code
'xc' => $matchset[2], //exchange code
'sn' => $matchset[3], //subscriber number
'xn' => $matchset[4], //extension number
);
//Set array of number variants
$numbers = array(
'original' => $matchset[0],
'stripped' => substr(preg_replace('[\D]', '', $matchset[0]), 0, 10)
);
//Now let's check the first ten digits against NANPA standards
if(preg_match($nanpa_pattern, $numbers['stripped'])) {
$valid['nanpa'] = true;
}
//If the NANPA guidelines have been met, continue
if($valid['nanpa']) {
if(!empty($components['xn'])) {
if(preg_match('/^[\d]{1,6}$/', $components['xn'])) {
$valid['ext'] = true;
}
}
else {
$valid['ext'] = true;
}
}
//If the extension number is valid or non-existent, continue
if($valid['ext']) {
$valid['all'] = true;
}
}
return $valid['all'];
}
推荐答案
您可以使用超前断言.基本上，我们要说的是我想要一系列特定的字母(例如，ex，ext，x，extension)，然后是一个或多个数字.但是我们也想涵盖根本没有扩展的情况.
You can resolve this using a lookahead assertion. Basically what we're saying is I want a series of specific letters, (e, ex, ext, x, extension) followed by one or more number. But we also want to cover the case where there's no extension at all.
旁注，您不需要括号 围绕单个字符，例如[\ s]或 随后的[x].另外，您可以分组 本来应该是相同的字符 点，因此您可以代替\ s?\.?/? 使用[\ s \ ./]?意思是其中任何一个 字符"
Side Note, you don't need brackets around single characters like [\s] or that [x] that follows. Also, you can group characters that are meant to be in the same spot, so instead of \s?\.?/?, you can use [\s\./]? which means "one of any of those characters"
这是regex的更新，也可以在这里解决您的评论.我已经在实际代码中添加了解释.
Here's an update with regex that resolves your comment here as well. I've added the explanation in the actual code.
<?php
$sPattern = "/^
(?: # Area Code
(?:
\( # Open Parentheses
(?=\d{3}\)) # Lookahead. Only if we have 3 digits and a closing parentheses
)?
(\d{3}) # 3 Digit area code
(?:
(?<=\(\d{3}) # Closing Parentheses. Lookbehind.
\) # Only if we have an open parentheses and 3 digits
)?
[\s.\/-]? # Optional Space Delimeter
)?
(\d{3}) # 3 Digits
[\s\.\/-]? # Optional Space Delimeter
(\d{4})\s? # 4 Digits and an Optional following Space
(?: # Extension
(?: # Lets look for some variation of 'extension'
(?:
(?:e|x|ex|ext)\.? # First, abbreviations, with an optional following period
|
extension # Now just the whole word
)
\s? # Optionsal Following Space
)
(?=\d+) # This is the Lookahead. Only accept that previous section IF it's followed by some digits.
(\d+) # Now grab the actual digits (the lookahead doesn't grab them)
)? # The Extension is Optional
$/x"; // /x modifier allows the expanded and commented regex
$aNumbers = array(
'123-456-7890x123',
'123.456.7890x123',
'123 456 7890 x123',
'(123) 456-7890 x123',
'123.456.7890x.123',
'123.456.7890 ext. 123',
'123.456.7890 extension 123456',
'123 456 7890',
'123-456-7890ex123',
'123.456.7890 ex123',
'123 456 7890 ext123',
'456-7890',
'456 7890',
'456 7890 x123',
'1234567890',
'() 456 7890'
);
foreach($aNumbers as $sNumber) {
if (preg_match($sPattern, $sNumber, $aMatches)) {
echo 'Matched ' . $sNumber . "\n";
print_r($aMatches);
} else {
echo 'Failed ' . $sNumber . "\n";
}
}
?>
和输出:
Matched 123-456-7890x123
Array
(
[0] => 123-456-7890x123
[1] => 123
[2] => 456
[3] => 7890
[4] => 123
)
Matched 123.456.7890x123
Array
(
[0] => 123.456.7890x123
[1] => 123
[2] => 456
[3] => 7890
[4] => 123
)
Matched 123 456 7890 x123
Array
(
[0] => 123 456 7890 x123
[1] => 123
[2] => 456
[3] => 7890
[4] => 123
)
Matched (123) 456-7890 x123
Array
(
[0] => (123) 456-7890 x123
[1] => 123
[2] => 456
[3] => 7890
[4] => 123
)
Matched 123.456.7890x.123
Array
(
[0] => 123.456.7890x.123
[1] => 123
[2] => 456
[3] => 7890
[4] => 123
)
Matched 123.456.7890 ext. 123
Array
(
[0] => 123.456.7890 ext. 123
[1] => 123
[2] => 456
[3] => 7890
[4] => 123
)
Matched 123.456.7890 extension 123456
Array
(
[0] => 123.456.7890 extension 123456
[1] => 123
[2] => 456
[3] => 7890
[4] => 123456
)
Matched 123 456 7890
Array
(
[0] => 123 456 7890
[1] => 123
[2] => 456
[3] => 7890
)
Matched 123-456-7890ex123
Array
(
[0] => 123-456-7890ex123
[1] => 123
[2] => 456
[3] => 7890
[4] => 123
)
Matched 123.456.7890 ex123
Array
(
[0] => 123.456.7890 ex123
[1] => 123
[2] => 456
[3] => 7890
[4] => 123
)
Matched 123 456 7890 ext123
Array
(
[0] => 123 456 7890 ext123
[1] => 123
[2] => 456
[3] => 7890
[4] => 123
)
Matched 456-7890
Array
(
[0] => 456-7890
[1] =>
[2] => 456
[3] => 7890
)
Matched 456 7890
Array
(
[0] => 456 7890
[1] =>
[2] => 456
[3] => 7890
)
Matched 456 7890 x123
Array
(
[0] => 456 7890 x123
[1] =>
[2] => 456
[3] => 7890
[4] => 123
)
Matched 1234567890
Array
(
[0] => 1234567890
[1] => 123
[2] => 456
[3] => 7890
)
Failed () 456 7890
这篇关于使用php/regex验证美国电话号码的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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