PHP Tutorials

Since PHP 5.4.0, PHP has implemented a code reuse method called Trait. Traits is a code reuse mechanism that is prepared for PHP-like single-inheritance languages. Trait to reduce the limitations of single-inheritance languages, developers are free

A timestamp (timestamp), usually a sequence of characters that uniquely identifies a moment in time. Digital timestamp technology is a variant application of digital signature technology. Time in PHP is also a very important requirement, this

In the process of learning PHP believe that a lot of people, all their own to try to develop a variety of functions, that have PHP to write a blog it? This article we will step by step to teach you how to use PHP to achieve a blog, hope that through

Instance Sends a value from the array to the user-defined function and returns a string: Definition and usage The Array_reduce () function sends a value from the array to the user-defined function and returns a string. Note: If the array is empty

PHP file upload, which every programmer will encounter. So how much do you know about PHP file uploads? This article mainly describes the PHP file upload detailed practices, you can refer to. 1. general file upload, unless the file is very small.

In the previous article we give you a description of PHP multi-threading implementation, so today we give you a detailed introduction of PHP implementation of asynchronous multi-threaded method, I hope that this article to let you know more about

Instance Compares the key values of two arrays and returns the intersection: "Green", "g" = "blue"), $result =array_intersect ($a 1, $a 2);p Rint_r ($result);? > Definition and usage The Array_intersect () function is used to compare the key values

First, Curl Summary Individual will summarize curl request into three steps 1. Create a curl handle (curl_init) and set the parameters (curl_setopt) (Open the refrigerator) 2, execute the request (CURL_EXEC), processing the returned data (put the

Finding another string in a string can use either Strstr (), STRCHR (), STRRCHR (), STRISTR () four functions. The function strstr () is the most common, and the function prototype is: Strstr (String,search,before_search)//string the string to be

What is the substr () function? the substr () function is part of the return string. The PHP substr () function write a lot of programs, this is mainly introduced in a few PHP substr () function written by the program. Syntax: substr

PHP is not a lot of operational symbols, but is not each of you know how to use it? Here, let's talk about the updated version of the OP symbol for PHP: ++,--, hehe. + + is self-increasing, -that is, self-reduction. Practical use: the ";//

Instance Calculate the number of occurrences of "world" in a string: The Substr_count () function calculates the number of occurrences of a substring in a string. Note: Substrings are case-sensitive. Note: This function does not count overlapping

Instance Return "World" from the string: Definition and usage The substr () function returns a portion of a string. Note: If the start parameter is negative and length is less than or equal to start, length is 0. Grammar SUBSTR (String,start,length)

In the previous article, we introduced the header function in PHP, as well as the definition of header, there are many ways to use the header in PHP, today we introduce the header method in PHP to achieve page jump case, This article analyzes the

Instance Compare two strings (case insensitive): Definition and usage The strncasecmp () function compares two strings (case insensitive). Note: strncasecmp () is binary safe and is case-insensitive. Tip: This function is similar to the strcasecmp (

PHP supports multiple processes and does not support multithreading; php-fpm runs multiple child processes in the process pool and processes all connection requests concurrently. The status of the PHP-FPM process pool (pm.start_servers = 2) is

Instance Use the "natural" algorithm to compare two strings (case insensitive): ", Echo strnatcasecmp ("10Hello world!", "2Hello world!"); > Definition and usage The strnatcasecmp () function uses a "natural" algorithm to compare two strings (case

In the previous article I introduced the PHP random number generation method, we all know that the PHP random number in the development, or in mobile applications, are not a small part of the daily development often with PHP random numbers to deal

The small partners who have read our previous article believe that they know a bit about PHP probes, but some say that it is some theory to write something, want to see some PHP probe code, in this, today to share a front desk based on HTML5

Instance Count the number of words in the string "Hello world!": Definition and usage The Str_word_count () function calculates the number of words in a string. Grammar Str_word_count (String,return,char) parameters description