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How to check whether an array is empty using PHP?
... is empty.
}
If you need to clean out empty values before checking (generally done to prevent explodeing weird strings):
foreach ($playerlist as $key => $value) {
if (empty($value)) {
unset($playerlist[$key]);
}
}
if (empty($playerlist)) {
//empty array
}
...
How to check if mod_rewrite is enabled in php?
...ng mod_php, you can use apache_get_modules(). This will return an array of all enabled modules, so to check if mod_rewrite is enabled, you could simply do
in_array('mod_rewrite', apache_get_modules());
Unfortunately, you're most likely trying to do this with CGI, which makes it a little bit more ...
How to output in CLI during execution of PHP Unit tests?
...
}
}
This lets you dump anything to your console at any time without all the unwanted output that comes along with the --verbose CLI option.
As other answers have noted, it's best to test output using the built-in methods like:
$this->expectOutputString('foo');
However, sometimes it's...
How do I remove the last comma from a string using PHP?
...This doesn't work in a loop that adds a comma at the end as it will remove all the commas.
– LizardKG
Mar 11 at 21:35
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浅谈TCP优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的处理能力，那么接收方会出现丢包。为了避免出现此类问题，流量控制要求数据传输双方在每次交互时声明各自的接收窗口「rwnd」大小，用来表示自己最大能保存多少数据，这主要是针对接收方而言的，通俗点儿说就是让发...
一个故事告诉你比特币的原理及运作机制 - 创意 - 清泛网 - 专注C/C++及内核技术
...事的方式，逐步告诉大家比特币提出的动机、解决了什么问题以及一些关键组件的目标和设计方案。
问题的提出
我们先从比特币产生的动机开始。
以物易物的比特村
话说在这个世界上，有一个叫比特村的小村庄，村庄共有...
一个转型程序员的销售观 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...，我们擅长技术，却完全不懂营销跟销售。当意识到这个问题的严重性后，我开始承担起业务销售这个角色。
程序员转销售？能做得好吗？做了三年多的app程序开发，自已觉得在技术领域还是做得比较出色的，两年的安卓加一...
How to loop through an associative array and get the key? [duplicate]
... using PHP 5, you should avoid using foreach by reference values and since all foreaches use internal array pointer ( current($Array) ) nesting foreaches or using PHP array functions can do weird things.
– Chaoix
Jul 12 '19 at 15:13
...
Do I have to guard against SQL injection if I used a dropdown?
... make sure the posted size is what you expect.
$possibleOptions = array('All', 'Large', 'Medium', 'Small');
if(in_array($_POST['size'], $possibleOptions)) {
// Expected
} else {
// Not Expected
}
Then use mysqli_* if you are using a version of php >= 5.3.0 which you should be, to sav...
How to get a substring between two strings in PHP?
...ieves that. I do not want to think about regex (well, I could do one but really don't think it's the best way to go). Thinking of strpos and substr functions.
Here's an example:
...