PHP Tutorials

This article mainly introduces the method of implementing the persistence layer in PHP, the interested friend's reference, hope to be helpful to everybody. In this paper, we describe the method of implementing object persistence layer based on

This article mainly introduces PHP for the deletion of arrays, conversion, grouping, sorting, interested in the reference of friends, I hope to be helpful to everyone. This article describes the PHP array operation class, as follows: Class

Floating-point arithmetic precision problem First look at an example: $a + $b = = $c return true, correct$c-$b = = $a return false, error Why is that?After the operation, the exact content returned when the precision is 20 bits is as

This article mainly introduces the PHP (thinkphp) +jquery implementation of the AJAX multi-select and uncheck the delete data function of the relevant data, the need for friends can refer to the following Suggested have JS Foundation, understand

1. Comparison of HTTP output with compression and not using compression 2. Turn on gzip Use Apache mod_deflate module to open gzipTo open a method: sudo a2enmod deflatesudo/etc/init.d/apache2 restart Close method: sudo a2dismod

PHP Filter HTML tag attribute class HtmlAttributeFilter.class.php array (' href ', ' class '), ' span ' =>array (' class ')) Private $_ignore = Array (); Ignore filtered tags such as: Array (' span ', ' img ')/** processing HTML, filtering

The PHP array_column method can return a specified column in the array, but cannot return multiple columns, this article describes the use of the Array_column method, and uses the code to demonstrate a method that returns the specified number of

This article mainly introduces PHP uses the Magickwand module operation picture to add the watermark method, the interest friend's reference, hoped to be helpful to everybody. In the use of PHP programming, many times need to upload images and

This article mainly introduces the PHP image processing function Daquan, has a certain reference value, now share to everyone, the need for friends can refer to PHP image processing code sharing, including zooming, cropping, zooming, flipping,

PHP receives parameters in CLI mode in two ways 1. Using the argv array2. Using the Getopt method 1. Using the argv array For example: Need to execute a PHP and pass three parameters (Type=news, is_hot=1, limit=5) Create test.php Executing at the

This article is mainly for you to introduce in detail the thinkphp session function, with a certain reference value, interested in small partners can refer to $_session is used in PHP to operate the session, while Thinkphp provides the session's

This article mainly introduces the 6 predefined interfaces introduced in PHP, this article explains Traversable, Iterator, Iteratoraggregate, arrayaccess, Serializable, Closure, A friend you need can refer to the following PHP pre-defined 6

This article mainly introduces PHP through the serial port to achieve the idea of sending text messages and specific implementation, interested in the reference of friends, hope to help you. With the progress of technology, the field of text

This article mainly introduces the PHP getcwd and dirname (__file__) different details of the relevant information, the need for friends can refer to the following __FILE__ is a magic constant used to get the full path and file name of a file. If

This article mainly introduces the composition and types of PHP variables, interested in the reference of friends, I hope to be helpful to everyone. PHP Variable components: Variable name: The PHP language variable name starts with $ +

This article introduces to you through the PHP-FPM implementation of performance optimization configuration method and considerations, the need for small partners can refer to the following Brief introduction: PHP-FPM is a PHP FastCGI manager,

This article mainly introduces the PHP code to achieve the MySQL connection pool effect, the need for friends can refer to the following Loops get the connection from the MySQL connection pool and do not need to create a new connection

This article is mainly for you to introduce two kinds of PHP file upload implementation method, interested friends can refer to File uploads generally have the following 2 ways: There are two kinds:1, the standard input form way, typical use

Regular expressions, which should be used frequently in development, are now used in many development languages with regular expressions. This article introduces you to the PHP regular expression introductory tutorial, interested friends to learn

This article mainly introduces the CentOS compiler installation php7.2, has a certain reference value, now share to everyone, the need for friends can refer to Introduced: Heard PHP7 speed and performance that is faster than any version of the PHP5