PHP

PHP-pcntl multi-process Code 0) {foreach ($ arChildId as $ iKey => $ iPid) {$ res = pcntl_waitpid ($ iPid, $ status, WNOHANG ); if ($ res =-1 | $ res> 0) {unset ($ arChildId [$ iKey]); echo '* Sub process :'. $ iPid. 'exited '. $ status. PHP_EOL ;}

When we often use the API interface to retrieve the json value returned by data, the value obtained by parsing the json_decode method is generally not an array, but an object string with stdClassObjec, if we want to obtain the corresponding PHP

The difference between fwrite and file_put_contents in PHP is the same: the file_put_contents () function writes a string to a file, just like calling the fopen (), fwrite (), and fclose () functions in turn. Difference: using FILE_APPEND in the

In a very large project, it is difficult to find out which file contains the BOM label. if we manually open each file to check, it will consume a lot of time, and it is very troublesome. we can use the PHP program to easily find all the files in the

I recently looked at the session issue and needed to determine whether the user is logged on. I found that either of the following methods can be used to determine whether the user is logged on. The code is as follows: {code ...} problem: In the

I upgraded php to 7.1 today and found that this function is not recommended: mcrypt_module_open () isdeprecated. Is there any other solution to replace it? Because 7.1 has not yet been officially released, and the 7.1 release document is not written

Array_walk is equivalent to foreach: {code ...} for example, remove the front and back spaces of the array $ arr element: {code ...} PHP array ing (MapReduce): {code ...} array_reduce: Use the callback function to iterate the array (reduce) into a

The thinkphp discussion board provides a platform for technical circles. you can seek help from various technical difficulties and publish thinkphp recruitment and chat, share the joy and troubles of IT life. come and join us! Let us all create a

The thinkphp discussion board provides a platform for technical circles. you can seek help from various technical difficulties and publish thinkphp recruitment and chat, share the joy and troubles of IT life. come and join us! Let us all create a

Problem: keep one decimal point, not rounded. if it is an integer, add 0. many people say sprintf (& #039; %. 1f & #039;, $ str);, but there is still a problem with the obtained result. Finally, this solution is used: echosprintf (& #039; %. 1f & #03

The thinkphp discussion board provides a platform for technical circles. you can seek help from various technical difficulties and publish thinkphp recruitment and chat, share the joy and troubles of IT life. come and join us! Let us all create a

The thinkphp discussion board provides a platform for technical circles. you can seek help from various technical difficulties and publish thinkphp recruitment and chat, share the joy and troubles of IT life. come and join us! Let us all create a

Problem: keep one decimal point, not rounded. if it is an integer, add 0. many people say sprintf (& #039; %. 1f & #039;, $ str);, but there is still a problem with the obtained result. Finally, this solution is used: echosprintf (& #039; %. 1f & #03

RT, I just want to display the database structure more clearly in the database graph. as for foreign key constraints, I will implement them in the code, will the deletion and update operations in the database be set to NOACTION or affect performance?

In PHP, what is the difference between $ _ REQUEST and $ _ POST | $ _ GET ?? What is the difference between $ _ REQUEST and $ _ POST in PHP? | $ _ GET ?? Please answer Reply content: In PHP, what is the difference between $ _ REQUEST and $ _

That is to say, when I click the submit form button, I use ajax to send the request, and then the background shows how to return the logon success or logon failure information to the foreground page, the whole process is refreshing !! Please give me

Because the built-in php5.5 is compiledwithmoduleAPI20121212, so redis. so also needs compiledwithmoduleAPI20121212. because the built-in php5.5 is compiled with module API = 20121212, redis. so also needs compiled with module API = 20121212.

Baidu tutorial, opened the nginx configuration file, but could not find the httpsServer, I am white, online and other great gods to answer Baidu tutorial, opened the nginx configuration file, but could not find the https Server, I am white, online

Git common related knowledge and commands Install the git program ContOS Yum install-y epel-release Yum install-y git Ubuntu Sudo apt-get install git Install on Windows Https://git-scm.com/download/win After the installation is complete, you need to

Many of our friends, one of the first problems they faced when learning PHP, was the love of require, include, require_once, and include_once. Many of our friends, one of the first problems they faced when learning PHP, was the love of require,