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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 ...
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How to determine the first and last iteration in a foreach loop?

...ght? Or relevant at all to this question since it involves HTML? This is a PHP question, clearly... and when it comes to mark-up semantics, it's down to a much deeper facts than "a proper blahblah is always better than blahblah (this is not even my opinion, it's pure fact)" – D...
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Best way to parse command line arguments in C#? [closed]

... master), or their arguments are not flexible (i.e., doesn't support --foo 123 = --foo=123 = -f 123= -f=123 and also -v -h = -vh). – Wernight Nov 28 '12 at 12:13 1 ...
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Remove warning messages in PHP

I have some PHP code. When I run it, a warning message appears. 12 Answers 12 ...
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京东618:算法让UV价值提升200%+,用智能卖场缩短购物路径 - 更多技术 - 清...

...区画像,除了界面的差异,两者在后端的处理上要解决的问题有什么不同?对推荐搜索和移动研发、交易平台研发的协作有什么样的要求? 智能卖场团队:这两者要解决的问题本质上是相同的,所以用的算法引擎是相同的。但...
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Conditional HTML Attributes using Razor MVC3

...on, and one users named himself '/><script>$.post('changepassword.php?password=123')</script> and now any other user who views this page has their password instantly changed to a password that the malicious user knows. ...
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Difference between “include” and “require” in php

... You find the differences explained in the detailed PHP manual on the page of require: require is identical to include except upon failure it will also produce a fatal E_COMPILE_ERROR level error. In other words, it will halt the script whereas include only emits a warning...
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How do I get a file extension in PHP?

... theirs is better because they have a built-in function to do that and not PHP (I am looking at Pythonistas right now :-)). In fact, it does exist, but few people know it. Meet pathinfo(): $ext = pathinfo($filename, PATHINFO_EXTENSION); This is fast and built-in. pathinfo() can give you other in...
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What's the use of ob_start() in php?

...ean() since ob_get_clean() essentially performs both functions. Reference: php.net/manual/en/function.ob-get-clean.php (PHP 4 >= 4.3.0, PHP 5) – Con Antonakos May 20 '15 at 16:49 ...
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php: determine where function was called from

is there a way to find out, where a function in PHP was called from? example: 8 Answers ...