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Show a number to two decimal places
What's the correct way to round a PHP string to two decimal places?
24 Answers
24
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Difference between float and double in php?
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There is no difference in PHP. float, double or real are the same datatype.
At the C level, everything is stored as a double.
The real size is still platform-dependent.
See the manual for more details:
http://www.php.net/manual/en/language.types.flo...
How to find day of week in php in a specific timezone
I am confused while using php to handle date/time.
12 Answers
12
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What's better at freeing memory with PHP: unset() or $var = null
... name says - unset a variable. It does not force immediate memory freeing. PHP's garbage collector will do it when it see fits - by intention as soon, as those CPU cycles aren't needed anyway, or as late as before the script would run out of memory, whatever occurs first.
If you are doing $whatever ...
Is there a PHP Sandbox, something like JSFiddle is to JS? [closed]
Is there a PHP Sandbox, something like JSFiddle is to JS?
1 Answer
1
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探讨nginx与php-fpm是不是以多进程多线程方式运行的 - 更多技术 - 清泛网 -...
探讨nginx与php-fpm是不是以多进程多线程方式运行的Nginx在nginx的配置文件中可以设置开启多少个nginx进程，如下：worker_processes 2;同时也可以设置每个进程的最大连接数，如下：worker_co Nginx
在nginx的配置文件中可以设置开启多少...
Uppercase Booleans vs. Lowercase in PHP
When I was learning PHP, I read somewhere that you should always use the upper case versions of booleans, TRUE and FALSE , because the "normal" lowercase versions, true and false , weren't "safe" to use.
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PHP: exceptions vs errors?
Maybe I'm missing it somewhere in the PHP manual, but what exactly is the difference between an error and an exception? The only difference that I can see is that errors and exceptions are handled differently. But what causes an exception and what causes an error?
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How to define an empty object in PHP
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A comment in the manual sums it up best:
stdClass is the default PHP object.
stdClass has no properties, methods or
parent. It does not support magic
methods, and implements no interfaces.
When you cast a scalar or array as
Object, you get an instance of
stdClass. You can us...
Explode PHP string by new line
...tioned in the comment to the first answer, the best practice is to use the PHP constant PHP_EOL which represents the current system's EOL (End Of Line).
$skuList = explode(PHP_EOL, $_POST['skuList']);
PHP provides a lot of other very useful constants that you can use to make your code system inde...