大约有 40,000 项符合查询结果（耗时：0.0270秒） [XML]
How do you manage databases in development, test, and production?
...on is readable also at http://martinfowler.com/articles/evodb.html
In one PHP+MySQL project I've had the database revision number stored in the database, and when the program connects to the database, it will first check the revision. If the program requires a different revision, it will open a pag...
Creating default object from empty value in PHP?
I see this error only after upgrading my PHP environment to PHP 5.4 and beyond. The error points to this line of code:
16 A...
How to get a time zone from a location using latitude and longitude coordinates?
...-lookup-oss - JavaScript library
GeoTimeZone - .NET library
Geo-Timezone - PHP library
timezonefinder - Python library
ZoneDetect - C library
Timeshape - Java library
TimeZoneMap - Java and Android library
lutz - R library
go-tz - Go library
Timezone lookup - Go library
docker-timezone-lookup - doc...
How to remove “index.php” in codeigniter's path
How do I remove the "index.php" sticking out in every path in codeigniter somewhere in the center?
I want clean non index.php-fied URLs ?
...
Why does PHP consider 0 to be equal to a string?
...
This is due to how PHP does the comparison operation that the == comparison operator denotes:
If you compare a number with a string or the comparison involves numerical strings, then each string is converted to a number and the comparison p...
What Are the Differences Between PSR-0 and PSR-4?
...rc/, with PSR-0 it means it will look for Acme\Foo\Bar in src/Acme/Foo/Bar.php while in PSR-4 it will look for it in src/Bar.php, allowing for shorter directory structures. On the other hand some prefer to have the full directory structure to clearly see what is in which namespace, so you can also s...
Bogus foreign key constraint fail
...
On demand, now as an answer...
When using MySQL Query Browser or phpMyAdmin, it appears that a new connection is opened for each query (bugs.mysql.com/bug.php?id=8280), making it neccessary to write all the drop statements in one query, eg.
SET FOREIGN_KEY_CHECKS=0;
DROP TABLE my_first_...
What is the difference between single-quoted and double-quoted strings in PHP?
I'm a little confused why I see some code in PHP with string placed in single quotes and sometimes in double quotes.
12 Ans...
php is null or empty?
I have a question regarding NULL in PHP:
9 Answers
9
...
Show a number to two decimal places
What's the correct way to round a PHP string to two decimal places?
24 Answers
24
...