PHP

I used $ _ SERVER [& #039; QUERY_STRING & #039;] in the code. on my local computer, $ _ SERVER [& #039; QUERY_STRING & #039;] there is a value, but the $ _ SERVER [& #039; QUERY_STRING & #039;] on the SERVER does not get the value. why? I used $ _

Questions about the frontend and backend separation model: the frontend and backend work is mixed at this stage. The demo is written at the front end and the data is rendered at the backend. if a bug occurs, debugging is time-and effort-consuming.

The keyup form event reads the characters in the input box .. Q: How about security? can I change the event? how do you do it? 1. I understand that security refers to how jq's keyup or change reads and recognizes the input characters. what is the

I have used preg_match to find a paragraph. If xxx exists, I will show xxx. this is my decision. as long as the string matches, what I want to know now is how to print a paragraph. string? Because the string will change, I want to print out the

When PHP runs CLI, strtotime (& #039; 2016-9-2259: 59: 59 & #039;) cannot return a timestamp, but this time is clearly correct ??? When PHP is running in CLI, strtotime ('1970-9-22 59: 59: 59') cannot return the timestamp. However, this time is

How to write excellent PHP code? Now, I can implement almost all the requirements, but the code is messy and the logic is not very good. how can I improve it? How to write excellent PHP code? Now, I can implement almost all the requirements, but the

I recently used the following method to determine the file type: download the file and get the file stream-& amp; gt; stored on the hard disk-& amp; gt. However, this seems a lot more than that. can you determine the file type without saving the

After Real-time data is transmitted to the server, you can query the data for a certain period of time as needed, and then download the queried data to the specified location on the local computer. After Real-time data is transmitted to the server,

The data structure is probably like this {code ...} the sorting rule is: First compare to the gold medal, the gold medal is consistent than the silver medal, the silver medal is consistent than the bronze medal, the bronze medal is consistent than

A shopnc running on port 8080 is enabled for the project, but the session of login_check is still in progress. after logging on, the session is no longer displayed when login_check is redirected to the new page, someone has encountered a similar

During the micro-school access, the interface test prompts that the parameter on the configuration page is incorrect. as instructed in the document, I configure is_config to 0, but there will still be such a prompt. code During the micro-school

Why can't I find the php-config file when installing the extension in php upgraded with yum? Why can't I find the php-config file when installing the extension in php upgraded with yum? Reply content: Why can't I find the php-config file when

Php string truncation user-defined functions are commonly used in the development process. generally, php built-in functions are also used, but they are not particularly useful, in particular, the support for Chinese characters is not very friendly,

You need to write a function isValidDate ($ date) with the following conditions: {code ...} when I wrote the second condition, I found that the time covered by the condition seemed to be a bit problematic. I 'd like to see your opinions. You need

The uploaded video cannot be played on the front end. it is an old tag and nobody is maintaining it now. so do you have any good editors that recommend the videos to be uploaded? the front end cannot play them, it's an old tag, and no one is

Php defines the implementation code core code of the 404 page: The code is as follows: @ Header ("http/1.1 404 not found "); @ Header ("status: 404 not found "); Echo 'echo 404 '; Exit (); To load the 404 page, you can run the following code:

Xdebug is a good helper for php debugging, and sublime is a good helper for php writing. Here we only talk about how to configure it. By default, readers will use sublimetext and Xdebug as a good helper for php debugging and sublime as a good helper

Php makes HTML tag auto-completion closed function code to explain some code: First ~ (] +?> )~ Si This regular expression is matched. . Simply put, all . Second ~ ] *? /> ~ Si This regular expression is matched ...... />. Is a single closed

One of the key decisions that programmers need to make when starting a project is to select a language or a group of languages for implementing the system. This decision will not only affect the implementation of the system, but also affect the

Small program calculator based on php basic language calculator based on small program written in php basic language Requirement: enter a number in the input box for addition, subtraction, multiplication, and division operations (html + php) Ideas: