PHP tp verification form and autofill function code_PHP tutorial
class FormModel extends Model {
//Automatic verification settings
/*
* 1: Automatic verification
The definition of automatic verification is as follows: array(field, rule, message, condition, type, when, params)
field: represents the field name of the database ;
rule: represents a rule;
its value depends on the type of type;
if condition is function (callback), rule is a function name
condition is in, rule is An array
message: represents the message prompt;
condition: represents the verification condition
Its value:
self::MUST_VALIDATE means it must be verified 1
self::VALUE_VAILIDATE means it is not empty When validating 2
self::EXISTS_VAILIDATE indicates field validation that exists in the form (default) 0
type: represents the validation type
Its value:
function(callback) indicates that the verification is to call a Model The function in
confirm means to verify whether two fields are the same
in and whether they are within a certain array range
equal to verify whether they are equal to a certain value
unique to verify whether a certain value is unique
regex Use regular expressions (default)
when: represents whether verification needs to be performed
Its value:
self::INSERT_STATUS Verification during add operation
self::UPDATE_STATUS Verification during update operation
self::ALL_STATUS (Needless to say)
params: parameters (I don’t know exactly what they are yet)
* */
protected $_validate = array(
array('title ','require','Title must be! ',1),//Must be verified
array('email','email','Email format is wrong!',2),//Verify if it is not empty
array('content','require','content must'),
array('title','','title already exists',0,'unique',self::MODEL_INSERT),
);
//Auto-fill settings
//array (fill fields, fill content, fill conditions, additional rules)
/* Fill conditions include:
ADD is processed when new data is added ( Default method) self::MODEL_INSERT is filled with
during add operation. Update is processed when updating data. self::MODEL_UPDATE is filled with
ALL during udate operation. Self::MODEL_BOTH is processed in all cases (needless to say)
Additional rules include:
function uses function
callback callback method
field fills
string with other fields (default method)
*/
protected $_auto = array(
array('status','1',self::MODEL_INSERT),
array('create_time','time',self::MODEL_INSERT,'function'),
);
}
?>

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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