PHP

Phprtrim (), substr () delete the maximum character of a string. We can use these two functions to delete the last character of a string. rtrim deletes spaces and special characters by default, but you can also delete the specified characters, page

Differences between phpstr_replace and preg_replace. The str_replace () function uses one string to replace other characters in the string. Simply replace echostr_replace (world, john, helloworld !);? Use a regular expression to replace the syntax:

Session_unset () and session_destroy () usage analysis. This section describes the functions of session_unset () and session_destroy. Session_unset () releases all the $ _ SESSION variables that have been created in the memory, but does not delete

Phpereg () converts htm to an xml file. Php Tutorial ereg () converts htm into an xml file implementation method syntax: intereg (stringpattern, stringstring, array [regs]); return value: integer array $ textthissometexthere .; ereg php Tutorial

Phparray_multisort () function details. Php Tutorial array_multisort () function description function boolarray_multisort (array $ arr [, mixed $ argSORT_ASC [, mixed $ argSORT_REGULAR [, mixed $...]) parameter description: describes the

Phparray_splice definition and usage. I have talked about the usage of phparray_splice before. today I will focus on the details of this function in the application. if you need it, please refer to it. I have talked about the usage of php

Array_slice function usage in PHP. This article specifically introduces the usage of array_slice functions and some common array_slice instance programs. The array_slice () function is detailed in the root article in the array. it introduces the

Strtr string replacement in PHP. This article describes how to replace strtr strings in PHP. For more information, see this article. Strtr (string, from, to) or strtr (string, array) for strtr functions, this article introduces strtr string

PHP code for converting arrays into json strings. Data conversion in js format is a common method for data transmission. for example, ajax often uses to convert data to json and then convert it back. let's look at an example. Code such as data

PHP multi-dimensional array sorting program code. In php, array sorting includes one-dimensional array sorting and multi-dimensional array sorting. next I will introduce in detail how to sort data using the php array sorting function and custom

The exec and shell_exec functions in PHP are different. Both of these functions execute Linux command functions. The difference is that the returned results are different. exec can only obtain the last row of data, while shell_execu can obtain all

Usage of the fgetcsv () function in php. Fgetcsv is a simple function for generating excel documents. from PHP4.3.5 onwards, the fgetcsv () operation is a binary secure code and the following code is copied? Php?filefopen(contacts.csv, r); prin

How to use regular expressions to represent Chinese characters. Because the Chinese ASCII code has a certain range. Therefore, you can use the following regular expression to represent Chinese characters. ^ [Chr (0xa1)-chr (0xff)] + $ The following

PHP class: mass mailing. This class can be used in mass mailing mode. the Test environment is linux. the system must install sendmail to use if (! Defined (MAIL_CLASS_DEFINED) {define (MAIL_CLASS_DEFINED, 1); the class can be used in mass mailing.

Provides powerful page turning functions. We all know that using php + mysql to display all database information on the web page is very simple and interesting. when there are few database information, the page is still satisfactory, however, we all

PHP provides simple page buffering technology. It is actually a technology, maybe not a real technology. This is just a page processing method I have come up with. of course, it may be consistent with others' ideas. But I still want to say it is

How to output PHP results to non-PHP pages. This problem is that after I implement the statistical count, I want to use its output on my page that does not support the PHP function. what should I do? The main solution is output 1. when I implement

Compare two methods for php to call Java objects. The PJava Language is powerful, so it is very useful to call Java functions in php in many cases. There are two methods to call the Java language in php: one is to use the Java extension module in

PHP-based chat room (2 ). Now we finally have everything we need to write a new file :? Open the php file, and take the file length as 0 bytes open_filefopen(messages.html, w); write the file header information and now we finally have everything we

ZendCache enables your site to fly. The transmission efficiency of commercial websites is very important. in some e-commerce websites, the response speed of servers determines the service quality, the server load determines the transmission