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What's better at freeing memory with PHP: unset() or $var = null
I realise the second one avoids the overhead of a function call ( update , is actually a language construct), but it would be interesting to know if one is better than the other. I have been using unset() for most of my coding, but I've recently looked through a few respectable classes found off t...
How to check if PHP array is associative or sequential?
PHP treats all arrays as associative, so there aren't any built in functions. Can anyone recommend a fairly efficient way to check if an array contains only numeric keys?
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Why a function checking if a string is empty always returns true? [closed]
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Simple problem actually. Change:
if (strTemp != '')
to
if ($strTemp != '')
Arguably you may also want to change it to:
if ($strTemp !== '')
since != '' will return true if you pass is numeric 0 and a few other cases due to PHP's autom...
PHP memory profiling
...r example, to see how much memory my data is using, and/or which function calls are allocating the most memory.
4 Answers
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Tactics for using PHP in a high-load site
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No two sites are alike. You really need to get a tool like jmeter and benchmark to see where your problem points will be. You can spend a lot of time guessing and improving, but you won't see real results until you measure and compare your changes.
For ...
How to print a debug log?
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+1 It took me too long to find this answer. This is all I really was looking for. I couldn't figure out how to see what my array contained (working in Drupal).
– SteveS
May 7 '14 at 14:31
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Conveniently Declaring Compile-Time Strings in C++
... Alexis Wilke
14.2k77 gold badges5151 silver badges9898 bronze badges
answered Apr 7 '13 at 8:30
YankesYankes
1,4521414 silver ba...
mysqli_fetch_assoc() expects parameter / Call to a member function bind_param() errors. How to get t
...Li code produces an error like mysqli_fetch_assoc() expects parameter..., Call to a member function bind_param()... or similar. Or even without any error, but the query doesn't work all the same. It means that your query failed to execute.
Every time a query fails, MySQL has an error message that ...
App Inventor 2 接入百度网盘API · App Inventor 2 中文网
...我们的请求：Transfer-Encoding can’t be trunked.
而采用python或php自己写一个简单服务端是可以接受上传的文件的。
采用图片base64方案，也只能自己写服务端，然后解码，恢复文件，百度网盘也无法采用这种方案。
直接用python或curl...
What is the difference between public, private, and protected?
...ly.
protected scope when you want to make your property/method visible in all classes that extend current class including the parent class.
If you don't use any visibility modifier, the property / method will be public.
More: (For comprehensive information)
PHP Manual - Visibility
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