PHP

The update transaction BUG and solution of the Codeigniter framework. Because the ci transaction determines whether the statement is successfully executed if an error is rolled back, even if the number of affected items is 0 during the update

The for loop only has limited number indexes. after the for and foreach traversal ends, you do not need to perform the reset () operation on the data for the next traversal, and the each method is required. Copy codeThe code is as follows: // $ Arr

As we all know, using json_encode can easily and quickly encode an object in json format. However, if the object's attributes contain Chinese characters, the problem arises. Json_encode converts Chinese to unicode encoding. for example, after

Obtain the MAC address source code of the NIC. Currently, Windows/LINUX systems are supported to obtain the physical (MAC) address of the NIC. Copy codeThe code is as follows: /**Obtain the MAC address source code of the NIC. Currently,

I want to give it a try in chinese and english. I just want to convert some commonly used and regular words such as 'comments '. the time unit (several seconds ago) can be freely converted. At first, it was easy to create an XML document. I just saw

When writing a program or webpage that processes strings, it is often necessary to find strings that meet certain complex rules. Regular expressions are syntaxes used to describe these rules. Introduction: When writing a program or webpage that

After the setcookie function specifies the domain parameter, the performance in IE is different from that in chrome and firefox. this is not a problem with the phpsetcookie function, which is a problem with IE. The following code generates three

Curiosity is the main motive of many attackers. Semantic URL attacks are a good example. Such attacks mainly include editing URLs to find interesting things. What is a semantic URL attack? Curiosity is the main motive of many attackers. Semantic

What should I do if an error occurs in the program during PHP and database development using PDO? Here we describe the error information and exception handling of the PDO class. Object-oriented approach First, let's take a look at the handling of

Phpajax is a static paging process with poor scalability, but it is suitable for beginners. Copy codeThe code is as follows: Js end and judgment

It is difficult to prevent the forgery of cross-site requests, and the danger is huge. attackers can use this method to prank, send spam information, and delete data. Cross-Site Request Forgery It is difficult to prevent the forgery of cross-site

The numeric amount is converted to the Chinese capital amount function StringInt $ num the lowercase number to be converted or the lowercase string Copy codeThe code is as follows: /** * Function for converting a numeric amount to a Chinese capital

English win32, the file name using GBK encoding Linux, the file name using UTF-8 encoding to solve the problem of unzipping the file name after garbled, using the file name for transcoding Copy codeThe code is as follows: Using

Using the explode function, use the string to be replaced as the separator, connect the two array elements to the string to be replaced, and then UPDATE the array for the past few days, A small problem occurs during work. one field of the content

This article introduces an easy-to-use encryption/decryption algorithm: using an exclusive or (XOR) operation. This algorithm is simple in principle and aims to give readers a more intuitive impression on the encryption/decryption of

This is a method, but it is the safest, because it can be solved as long as you know the principle, but you do not have high requirements. Copy codeThe code is as follows: $ ReturnUrl = rawurlencode (base64_encode ($ returnUrl); // encoding $

Today, I will share my thoughts on the infinite classification methods in php. For more information about php learning, see. There are roughly three methods for unlimited php classification, 1. the database performs a unique index by setting the

PHP has more than 30 new array-related functions, many of which allow you to check whether a specific object exists in the given array, count array elements, add or delete elements, or sort the elements. If you have a large array and all you need to

Jpgraph is a very powerful third-party report tool in php. it is said that new beginners who want to complete all the required graphics will certainly encounter various problems, such as garbled code or something, this case is made in jpgraph3.0.7

The principle is to first determine whether the date of the current article is the day of the current month, that is, click number plus 1 Copy codeThe code is as follows: $ Now = time (); // current time $ StrUpdate = "Update $ tbl_article set