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PHP - iterate on string characters
...like to be able to do foreach , array_map , array_walk , array_filter etc. on the characters of a string.
9 Answers
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Recursion or Iteration?
... they are designed (Fibonacci sequences, traversing a tree like structure, etc.). Recursion makes the algorithm more succinct and easier to understand (therefore shareable and reusable).
Also, some recursive algorithms use "Lazy Evaluation" which makes them more efficient than their iterative brot...
Is Haxe worth learning? [closed]
...fine classes/interfaces/enums/typedefs in the same way for JS, Flash, C++, etc. If those types you define do not depend on a specific platform API, they can be reused from platform to platform with no effort at all. All the platforms also share common APIs like XML access, HTTP connections and refle...
How to convert string to boolean php
...ordPress shortcode attributes that have values such as true, false, on, 0, etc. Great answer, should definitely be the accepted answer.
– AndyWarren
Jun 8 '17 at 17:49
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How would I skip optional arguments in a function call?
...bj = new MyObjectClass();
$var = $obj->a(MyObjectClass::DEFAULT_A_B); //etc.
Note that this default constant is defined exactly once throughout the code (there is no value even in method declaration), so in case of some unexpected changes, you will always supply the function/method with correct...
New line in JavaScript alert box
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you have to use double quotes to display special char like \n \t etc... in js alert box
for exemple in php script:
$string = 'Hello everybody \n this is an alert box';
echo "<script>alert(\"$string\")</script>";
But a second possible problem arrives when you want to display ...
How to force file download with PHP
...dd proper content type based on your file application/zip, application/pdf etc. - but only if you do not want to trigger the save-as dialog.
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How to detect duplicate values in PHP array?
...utput
Array
(
[apple] => 2
[orange] => 1
[pear] => 2
etc...
)
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How to use PHP OPCache?
... include things like: the state the cache is in (enabled, restarting, full etc), the memory usage, hits, misses and some more useful information. It will also contain the cached scripts.
var_dump(opcache_get_status());
opcache_reset():
Resets the entire cache. Meaning all possible cached scripts...
java中的缓存技术该如何实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...存在于什么地方?3缓存有哪些属性?4缓存介质?搞清楚这4个问题,那么我们就可以随意的通过应用的场景来判断使用何...1、缓存为什么要存在？
2、缓存可以存在于什么地方？
3、缓存有哪些属性？
4、缓存介质？
搞清楚这4个...