info/php-the-right-way
1
0
Fork 0
mirror of https://github.com/codeguy/php-the-right-way.git synced 2025-08-07 22:46:39 +02:00
Code Issues Projects Releases Wiki Activity

Merge pull request #880 from colshrapnel/patch-2

Browse Source 
Delete the Variable declarations section
This commit is contained in:
Matt Trask
2021-03-02 19:04:18 -06:00
committed by GitHub
parent 43aa74095a 21ca28d92a
commit 1f65c4b362
1 changed files with 0 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
pages/The-Basics.md
View File

@@ -414,21 +414,3 @@ Since PHP 5.3, it is possible to leave out the middle part of the ternary operat
Expression "expr1 ?: expr3" returns expr1 if expr1 evaluates to TRUE, and expr3 otherwise.
* [Ternary operators](http://php.net/language.operators.comparison)
## Variable declarations
At times, coders attempt to make their code "cleaner" by declaring predefined variables with a different name. What
this does in reality is to double the memory consumption of said script. For the example below, let us say an example
string of text contains 1MB worth of data, by copying the variable you've increased the scripts execution to 2MB.
{% highlight php %}
<?php
$about = 'A very long string of text'; // uses 2MB memory
echo $about;
// vs
echo 'A very long string of text'; // uses 1MB memory
{% endhighlight %}
* [Performance tips](http://web.archive.org/web/20140625191431/https://developers.google.com/speed/articles/optimizing-php)