Commonly used regular matches in php_PHP tutorial
[php]
function pregPN($test){
/**
Matching mobile phone numbers
Rules:
Basic format of mobile phone number:
The first three digits are:
Mobile: 134-139 147 150-152 157-159 182 187 188
China Unicom: 130-132 155-156 185 186
Telecommunications: 133 153 180 189
The last eight digits are:
0-9-bit numbers
*/
$rule = "/^((13[0-9])|147|(15[0-35-9])|180|182|(18[5-9]))[0-9]{8}$/A";
preg_match($rule,$test,$result);
return $result;
}
/**
Matching mobile phone numbers
Rules:
Basic format of mobile phone number:
The first three digits are:
Mobile: 134-139 147 150-152 157-159 182 187 188
China Unicom: 130-132 155-156 185 186
Telecommunications: 133 153 180 189
The last eight digits are:
0-9 digit number
*/
$rule = "/^((13[0-9])|147|(15[0-35-9])|180|182|(18[5-9]))[0-9]{8}$/A";
preg_match($rule,$test,$result);
return $result;
}
[php]
function pregE($test){
/**
Matching email address
Rules:
The basic email format is *****@**.**
@Or numbers at the beginning, follow 0 to multiple cases or numbers or. _ -String
@. Before, there were 1 to multiple cases of lethal letters or numbers.
After that, there are 1 to multiple cases of lethal letters or numbers or.
*/
$zhengze = '/^[a-zA-Z0-9][a-zA-Z0-9._-]*@[a-zA-Z0-9]+.[a-zA-Z0-9.]+$/A';
preg_match($zhengze,$test,$result);
return $result;
}
function pregE($test){
/**
Rules:
The basic email format is *****@**.**
@ used to be a string starting with an uppercase or lowercase letter or number, followed by 0 to more uppercase or lowercase letters or numbers or . _ -
After @ comes. Before it is a string of 1 to more uppercase and lowercase letters or numbers
.Followed by 1 to more strings of uppercase and lowercase letters or numbers or .
*/
$zhengze = '/^[a-zA-Z0-9][a-zA-Z0-9._-]*@[a-zA-Z0-9]+.[a-zA-Z0-9.]+$/A';
preg_match($zhengze,$test,$result);
return $result;
}
[php]
function pregTP($test){
/**
Phone number matching
Phone number rules:
Area code: 3 to 5 digits, most are four digits, Beijing (010) and Shanghai (021) are three digits, Tibet has some five digits, it can be wrapped in brackets or not
If there is an area code wrapped in brackets, there can be 0 to 1 space between the area code and the number. If the area code is not wrapped in brackets, there can be two digits between the area code and the number or -
Number: 7 to 8 digits
For example: (010) 12345678 or (010)12345678 or 010 12345678 or 010--12345678
*/
$rule = '/^((((010)|(021)|(0d{3,4})))( ?)([0-9]{7,8}))|((010|021|0d{3,4}))([- ]{1,2})([0-9]{7,8})$/A';
preg_match($rule,$test,$result);
return $result;
}
function pregTP($test){
/**
Phone number matching
Phone number rules:
Area code: 3 to 5 digits, most are four digits, Beijing (010) and Shanghai (021) are three digits, Tibet has some five digits, it can be wrapped in brackets or not
If there is an area code wrapped in brackets, there can be 0 to 1 space between the area code and the number. If the area code is not wrapped in brackets, there can be two digits between the area code and the number or -
Number: 7 to 8 digits
For example: (010) 12345678 or (010)12345678 or 010 12345678 or 010--12345678
*/
$rule = '/^((((010)|(021)|(0d{3,4})))( ?)([0-9]{7,8}))|((010|021|0d{3,4}))([- ]{1,2})([0-9]{7,8})$/A';
preg_match($rule,$test,$result);
return $result;
}
[php]
function pregURL($test){
/**
Matching url
URL rules:
Example
Protocol://Domain name (www/tieba/baike...).Name.Suffix/File path/File name
http://zhidao.baidu.com/question/535596723.html
Protocol://Domain name (www/tieba/baike...).Name.Suffix/File path/File name?Parameters
Www.lhrb.com.cn/portal.php?mod=View&AID=7412
Protocol://Domain name (www/tieba/baike...).Name.Suffix/File path/File name/Parameters
http://www.xugou.com.cn/yiji/erji/index.php/canshu/11
Agreement: It may be composed of large and small office letters; it should not exist without writing a protocol: //, otherwise there must be: //
Domain name: must exist, consisting of uppercase and lowercase letters
Name: Must exist, alphanumeric Chinese characters
Suffix: must exist, composed of uppercase and lowercase letters and .
File path: optional, consisting of uppercase and lowercase letters and numbers
File name: optional, consisting of uppercase and lowercase letters and numbers
must start with? if it exists, must have corresponding parameter information
*/
$rule = '/^(([a-zA-Z]+)(://))?([a-zA-Z]+).(w+).([w.]+)(/([w]+)/?)*(/[a-zA-Z0-9]+.(w+))*(/([w]+)/?)*(?(w+=?[w]*))*((&?w+=?[w]*))*$/';
preg_match($rule,$test,$result);
return $result;
}
/**
Matching url
URL rules:
Example
Protocol://Domain name (www/tieba/baike...).Name.Suffix/File path/File name
http://zhidao.baidu.com/question/535596723.html
Protocol://Domain name (www/tieba/baike...).Name.Suffix/File path/File name?Parameters
www.lhrb.com.cn/portal.php?mod=view&aid=7412
Protocol://Domain name (www/tieba/baike...).Name.Suffix/File path/File name/Parameters
http://www.xugou.com.cn/yiji/erji/index.php/canshu/11
Protocol: optional, consisting of uppercase and lowercase letters; if protocol is not written, it should not exist://, otherwise it must exist://
Domain name: must exist, consisting of uppercase and lowercase letters
Name: must exist, alphanumeric Chinese characters
Suffix: must exist, composed of uppercase and lowercase letters and .
File path: optional, consisting of uppercase and lowercase letters and numbers
File name: optional, consisting of uppercase and lowercase letters and numbers
Parameters: optional, if they exist, they must start with ?, that is, if they exist, there must be corresponding parameter information starting with ?
*/
$rule = '/^(([a-zA-Z]+)(://))?([a-zA-Z]+).(w+).([w.]+)(/([w]+)/?)*(/[a-zA-Z0-9]+.(w+))*(/([w]+)/?)*(?(w+=?[w]*))*((&?w+=?[w]*))*$/';
preg_match($rule,$test,$result);
return $result;
}
[php]
function pregIC($test){
/**
Matching ID number
Rules:
15 pure digits or 18 pure digits or 17 digits plus one x
*/
$rule = '/^(([0-9]{15})|([0-9]{18})|([0-9]{17}x))$/';
preg_match($rule,$test,$result);
return $result;
}
function pregIC($test){
/**
Match ID number
Rules:
15 pure digits or 18 pure digits or 17 digits plus one x
*/
$rule = '/^(([0-9]{15})|([0-9]{18})|([0-9]{17}x))$/';
preg_match($rule,$test,$result);
return $result;
}
[php]
function pregPOS($test){
/**
Matching zip code
Rules: Six digits, the first digit cannot be 0
*/
$rule ='/^[1-9]d{5}$/';
preg_match($rule,$test,$result);
return $result;
}
function pregPOS($test){
/**
Matching zip code
Rules: Six digits, the first digit cannot be 0
*/
$rule ='/^[1-9]d{5}$/';
preg_match($rule,$test,$result);
return $result;
}
[php]
function pregIP($test){
/**
Matching ip
Rules:
**1.**2.**3.**4
**1 can be 1-9 for one digit, 01-99 for two digits, 001-255 for three digits
**2 and **3 can be 0-9 for one digit, 00-99 for two digits, 000-255 for three digits
**4 can be 1-9 for one digit, 01-99 for two digits, 001-255 for three digits
Four parameters must exist
*/
$rule = '/^((([1-9])|((0[1-9])|([1-9][0-9]))|((00[1-9])|(0[1-9][0-9])|((1[0-9]{2})|(2[0-4][0-9])|(25[0-5])))).)((([0-9]{1,2})|(([0-1][0-9]{2})|(2[0-4][0-9])|(25[0-5]))).){2}(([1-9])|((0[1-9])|([1-9][0-9]))|(00[1-9])|(0[1-9][0-9])|((1[0-9]{2})|(2[0-4][0-9])|(25[0-5])))$/';
preg_match($rule,$test,$result);
return $result;
}
function pregIP($test){
/**
Matching ip
Rules:
**1.**2.**3.**4
**1 can be 1-9 for one digit, 01-99 for two digits, 001-255 for three digits
**2 and **3 can be 0-9 for one digit, 00-99 for two digits, 000-255 for three digits
**4 can be 1-9 for one digit, 01-99 for two digits, 001-255 for three digits
Four parameters must exist
*/
$rule = '/^((([1-9])|((0[1-9])|([1-9][0-9]))|((00[1-9])|(0[1-9][0-9])|((1[0-9]{2})|(2[0-4][0-9])|(25[0-5])))).)((([0-9]{1,2})|(([0-1][0-9]{2})|(2[0-4][0-9])|(25[0-5]))).){2}(([1-9])|((0[1-9])|([1-9][0-9]))|(00[1-9])|(0[1-9][0-9])|((1[0-9]{2})|(2[0-4][0-9])|(25[0-5])))$/';
preg_match($rule,$test,$result);
return $result;
}
[php]
function pregTI($test){
/**
Matching time
Rules:
The form can be:
Year-Month-Day Hour:Minute:Second
Year-Month-Day Hour:Minute
Year-month-day
Year: four digits starting with 1 or 2
Month: 1 digit from 1 to 9; two digits starting with 0 or 1, when the unit digit starts with 0, it is a number from 1 to 9, when it starts with 1, the units digit is a number from 1 to 2
Day: 1 digit number from 1 to 9; two digits starting with 0 or 1 or 2 or 3. When the unit digit starts with 0, it is a number from 1 to 9. When it starts with 1 or 2, the units digit is 0 to 9. When the number starts with 3, the single digit is 0 or 1
Hours: one digit from 0 to 9; two digits starting with 0 or 1, the ones digit is 0 to 9; two digits starting with 2, the ones digit is 0-3
Minutes: one digit from 0 to 9; two digits starting from 0 to 5, the units digit is 0 to 9;
Minutes: one digit from 0 to 9; two digits starting from 0 to 5, each digit is 0 to 9
*/
$rule ='/^(([1-2][0-9]{3}-)((([1-9])|(0[1-9])|(1[0-2]))-)((([1-9])|(0[1-9])|([1-2][0-9])|(3[0-1]))))( ((([0-9])|(([0-1][0-9])|(2[0-3]))):(([0-9])|([0-5][0-9]))(:(([0-9])|([0-5][0-9])))?))?$/';
preg_match($rule,$test,$result);
return $result;
}
function pregTI($test){
/**
Matching time
Rules:
The form can be:
Year-Month-Day Hour:Minute:Second
Year-Month-Day Hour:Minute
Year-month-day
Year: four digits starting with 1 or 2
Month: 1 digit number from 1 to 9; two digits starting with 0 or 1, when the single digit starts with 0, it is a number from 1 to 9, when it starts with 1, the single digit is a number from 1 to 2
Day: 1 digit number from 1 to 9; two digits starting with 0 or 1 or 2 or 3. When the unit digit starts with 0, it is a number from 1 to 9. When it starts with 1 or 2, the units digit is 0 to 9. When the number starts with 3, the single digit is 0 or 1
Hours: one digit from 0 to 9; two digits starting with 0 or 1, the ones digit is 0 to 9; two digits starting with 2, the ones digit is 0-3
Minutes: one digit from 0 to 9; two digits starting from 0 to 5, the units digit is 0 to 9;
Minutes: one digit from 0 to 9; two digits starting from 0 to 5, everyone is 0 to 9
*/
$rule ='/^(([1-2][0-9]{3}-)((([1-9])|(0[1-9])|(1[0-2]))-)((([1-9])|(0[1-9])|([1-2][0-9])|(3[0-1]))))( ((([0-9])|(([0-1][0-9])|(2[0-3]))):(([0-9])|([0-5][0-9]))(:(([0-9])|([0-5][0-9])))?))?$/';
preg_match($rule,$test,$result);
return $result;
}
[php]
function pregCh($test){
//utf8下匹配中文
$rule ='/([x{4e00}-x{9fa5}]){1}/u';
preg_match_all($rule,$test,$result);
return $result;
}

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PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.

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PHP remains a powerful and widely used tool in modern programming, especially in the field of web development. 1) PHP is easy to use and seamlessly integrated with databases, and is the first choice for many developers. 2) It supports dynamic content generation and object-oriented programming, suitable for quickly creating and maintaining websites. 3) PHP's performance can be improved by caching and optimizing database queries, and its extensive community and rich ecosystem make it still important in today's technology stack.

In PHP, weak references are implemented through the WeakReference class and will not prevent the garbage collector from reclaiming objects. Weak references are suitable for scenarios such as caching systems and event listeners. It should be noted that it cannot guarantee the survival of objects and that garbage collection may be delayed.

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