PHP

There are many ways to traverse arrays. The following describes how to use pointers to traverse arrays. Let's take a look at this example. There are many ways to traverse arrays. The following describes how to use pointers to traverse arrays. Let's

The explode and preg_split functions are used to separate string functions in php. However, the most widely used functions in small series are separated by one character directly, if there are multiple strings, we don't seem to know how to use this

Arrangement and combination formula arrangement the formula P Refers to the arrangement, where N elements are sorted by R. Formula C refers to a combination. It gets R from N elements and is not arranged. But in php, we can write it in N methods,

Recently, cross-platform implementation is required. The project uses UTF-8 encoding because of various encoding problems during the operation, therefore, UTF-8 encoding is converted into unicode encoding that enables cross-language and

Cookie cross-origin has always been a big problem. Many friends don't know how to solve it and use json for processing. In fact, there is a simpler way, next, let's take a look at the cookie cross-domain issue, which has always been a big problem.

A public IP address is an Internet IP address. When a user accesses our php page, we can obtain the user's IP address, which is called a public IP address, let's take a look at the two functions below. A public IP address is an Internet IP address.

Php array is a special character type. Let's take a look at the example of a PHP string and a byte array. If you need to know it, let's take a look. php array is a special character type. Let's take a look at the example of a PHP string and a byte

Automatic loading class magic method in php. We can use the _ autoload method in php. Let's take a look at the PHP class's automatic loading program code, I hope this article will help you. Automatic loading class magic method in php. We can use the

In short, both time () and $ _ SERVER [REQUEST_TIME] obtain the time, however, time returns the current Unix timestamp while $ _ SERVER [REQUEST_TIME] returns the timestamp at the beginning of the request, which is slightly different. In short, both

When developing a website, we sometimes set a 404 error page to prompt users that the entered website does not exist. Another benefit of setting 404 is to prevent malicious users from guessing your url parameters. This article describes how to set

We know that in php, The addslashes function is a secure filter function, which can be used to escape the variables to securely store them into the database. However, if we pass parameters in the form of arrays, you cannot directly use this function.

The PHPcurl encapsulation class compiled in the following section can implement functions including reading, writing, and writing cookies, constructing post parameters, forging source IP addresses, and setting proxy functions, next let's take a look

In the mobile Internet era, mobile stations are essential. The following is my php function for getting information about the mobile browser. I hope it will help you develop your mobile phone site. In the mobile Internet era, mobile stations are

Data in json format can be directly sent using geturl or post. We will summarize the two methods for reading json data. You can directly use the get url or post method to send json data. We will summarize the two methods for reading json

The website needs to download files from a remote server over http, so it writes a script to provide File Download. Let's take a look at how PHP can be used to download files. The website needs to download files from a remote server over http, so it

Google cannot be opened in China. Many of my friends will find a way to set up a hosts specified IP address, which can still be accessed normally. Next we will introduce you to a php program for capturing googlehosts, I hope it will be useful to you.

PHPExcel is a php plug-in used to operate excel tables. We can use it for data import or import operations. However, sometimes we need some special column names and how to operate them. PHPExcel is a php plug-in used to operate excel tables. We can

We know that the browser generally does not support cross-origin form submission because of security issues, but sometimes we need it again. Next let's take a look at an example of cross-origin form submission. We know that the browser generally

The function can find the location through the relevant function sample. This is the first time that I have heard of this question. However, this function is really effective for testing, now let's take a look at the two code functions. We can find

Arrays and Json formats are very similar. We can use relevant functions to convert each other, the following is a collection of data read from mysql and then converted to json return using the php function. The following arrays are actually very