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MySQL ON DUPLICATE KEY - last insert id?
...le (a) VALUES (0)
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id), a=1
Is all here: http://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.html
If a table contains an AUTO_INCREMENT column and INSERT ... UPDATE
inserts a row, the LAST_INSERT_ID() function returns the
AUTO_INCREMENT value. If t...
Convert from MySQL datetime to another format with PHP
...oking for a way to normalize a date into MySQL format, use the following
$phpdate = strtotime( $mysqldate );
$mysqldate = date( 'Y-m-d H:i:s', $phpdate );
The line $phpdate = strtotime( $mysqldate ) accepts a string and performs a series of heuristics to turn that string into a unix timestamp.
T...
How to get HTTP Response Code using Selenium WebDriver
... the response code of a http request using Selenium and Chrome or Firefox. All you have to do is start either Chrome or Firefox in logging mode. I will show you some examples below.
java + Selenium + Chrome
Here is an example of java + Selenium + Chrome, but I guess that it can be done in any lang...
How to Flatten a Multidimensional Array?
Is it possible, in PHP, to flatten a (bi/multi)dimensional array without using recursion or references?
29 Answers
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What is the most efficient/elegant way to parse a flat table into a tree?
...
Now that MySQL 8.0 supports recursive queries, we can say that all popular SQL databases support recursive queries in standard syntax.
WITH RECURSIVE MyTree AS (
SELECT * FROM MyTable WHERE ParentId IS NULL
UNION ALL
SELECT m.* FROM MyTABLE AS m JOIN MyTree AS t ON m.ParentI...
PHP cURL vs file_get_contents
... @velop: Yes. And method, too. And redirects. And timeout... php.net/manual/en/context.http.php
– Sz.
Mar 28 '18 at 19:54
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How to get the current taxonomy term ID (not the slug) in WordPress?
...
If you are in taxonomy page.
That's how you get all details about the taxonomy.
get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) );
This is how you get the taxonomy id
$termId = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxo...
Determine if variable is defined in Python [duplicate]
...ime? This is not always obvious because (1) the variable could be conditionally set, and (2) the variable could be conditionally deleted. I'm looking for something like defined() in Perl or isset() in PHP or defined? in Ruby.
...
Is there a REAL performance difference between INT and VARCHAR primary keys?
... and a coworker won't budge on the INT AUTO_INCREMENT as a primary key for all tables.
14 Answers
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浏览器请求同一php文件时，后一请求会被前一请求阻塞，有什么办法不阻塞吗 ...
浏览器请求同一php文件时，后一请求会被前一请求阻塞，有什么办法不阻塞吗解决方案及原理详见：《探讨nginx与php-fpm是不是以多进程多线程方式运行的》《window+nginx+php-cgi的php-cgi线程 子进程问题》解决方案及原理详见：
《...