PHP Tutorials

The company wants to do a snapping up function How can I avoid the extra order of concurrent orders? Because the database is MONGO can't lock like MySQL Do not know what a good solution? All I want to do is use Redis to force him to line up, but

A user data sheet exists user_tableThere's a birthdayfield holds the user's date of birth (e.g. 1994-01-01、1996-07-1) The corresponding timestamp data Now you need to sort by birthdays from near to far to find user dataFor example today 2016-07-28 ,

There are 2000w rows of data in a TXT document, the format of the data is as follows The Walking Dead _mother Jinchantuoqiao _smile Farewell My Concubine _love Impunity _eternity ....... Eight Immortals crossing _destiny How to quickly retrieve

detail[0]->name;echo $obj->detail[0]->location->city;?> How do I change the code? Reply content: detail[0]->name;echo $obj->detail[0]->location->city;?> How do I change the code? Your JSON format is not correct Ah, the JSON string is

Recently developed a project. The client submits 100 rows of data to the server every 10 seconds, and then writes the service-side check. The client is about tens of thousands of, and the submitted data is relatively concentrated, regardless of the

Here is the PHP encryption and decryption $g_v = get_post_meta($post->ID, 'url', true); function abcEncode($m){ $m = base64_encode($m); $m = str_replace("Ax","@jkp",$m); $m = str_replace("ak","@bfg",$m); $m = str_replace("R","!BeF",$m);

Using thinkphp to develop a template to write a lot of judgment to read the desired data such as to write 30 if ELSEIF judgment will affect the page speed there is a better solution not Reply content: Using thinkphp to develop a template to

Requirements: Statistics of daily data based on start and deadline time Now the data from the database is about 10 two-dimensional arrays, the same structure as follows: [ '0' => [ 'time' => '2016-8-3', 'data1'=> 'xxx', ...

, now do an official website of the project, the request is responsive bar, mobile also to adapt, the PC has a UI design manuscript to me, but the mobile side did not, now the mobile finished, but because there is no design draft, I follow my best

Boss wants me to implement a PHP asynchronous email function, the Internet to find the data found with Popen can, so initially written like this: pclose(popen("php -f mymail.php","r")); This script is an account that sends an email to me using

$connect = mysqli_connect("host","user","password","db") or die("Error " . mysqli_error($connect));$result = mysql_query('select * from admin',$connnet);print(mysql_num_rows($result));mysql_close(); Error: Warning: mysql_query(): supplied argument

In the project with composer installed a package, but according to their own business to the package modified some code, then how to manage this package, need to change the code to upload to GitHub? Reply content: In the project with composer

Grab a page with a datasheet with curl, just get all the cells under TR and use the following method $content = 内容;preg_match_all('/(.*?)/',$content,$res); But there are two things that can't be matched. 内容

I want to send a request with the headers head, why the error? Traceback (most recent call last): File "D:\python\get-email-by-tieba.py", line. Main () file "D:\python\get-email-by-tieba.py", line 6, in main Getthreadbytid () file

XML needs to be parsed, The thought of using the Simplexml,echo output object can get the value, but in the process of assigning a value to an array unit becomes an object, so you want to simply turn all the parsed objects into JSON and then into an

In the development needs to obtain the current city, I use the gold map, but some city positioning is wrong, such as in Shenzhen will be located in Chengdu, there is no other way to locate the current city, for example, through the HTML5 to obtain

Plus the button label on the navigation bar will be the error to remove the button label is OK error content as follows Warning:session_start (): Cannot send session cache Limiter-headers already sent Is it because the session_start () is not in

The first one is the preview effect, the second is the code Can be seen, I output in the page is the same variable, and the page effect, the above textarea is normal, only the following ueditor is garbled, ask this is how it? Database is not

I have a page that needs to prevent users from swiping up and down when browsing with a mobile phone. How to set the corresponding css style or js Reply content: I have a page that needs to prevent users from swiping up and down when browsing

Example: Replace comma, space character, or Chinese comma $str = ' correct, contact us goodsjob,goodsjob '; $reg = Array (', ', ' ', ', '); $strs = ' username '. Str_replace ($reg, '%, or username like% ', $str). ' %'; The returned data is: username