When to use or not use symbols in PHP

Posted by brett on Stack Overflow See other posts from Stack Overflow or by brett
Published on 2010-03-28T14:41:03Z Indexed on 2010/03/28 14:43 UTC
Read the original article Hit count: 278

Filed under:

php

|

symbols

|

syntax

I'm reading a PHP book where the author says that symbols should be avoided except when it's valid to use them. Very informative stuff, if he could only elaborate or give code examples but he doesn't.

Can someone from the experienced PHP bunch give me an example of what these symbols are, and when it makes sense to use them or not. I'm looking for a code example that I can wrap my head around since I don't quite get it in plain English. Code is more plain English to me.

© Stack Overflow or respective owner

Related posts about php

Magento, NGINX, PHP-FPM, APC, MEMCACHED, 16gb Ram CentOS, Spiking PHP-FPM to 100% CPU

as seen on Server Fault - Search for 'Server Fault'
I have been trying to resolve my issue of spiking cpu caused by php-fpm processes. I've reduced the php-fpm config settings to: pm = ondemand pm.max_children = 12 pm.start_servers = 2 pm.min_spare_servers = 2 pm.max_spare_servers = 10 pm.max_requests = 500 php_admin_value[memory_limit] = 128M Problem… >>> More
PHP Pear Installation on CentOS

as seen on Server Fault - Search for 'Server Fault'
[root@ip ~]# yum install php-pear* Reducing CentOS-5 Testing to included packages only Finished Setting up Install Process Package 1:php-pear-1.8.1-2.el5.centos.noarch already installed and latest versio … >>> More
Apache configurations for php "AddType text/html php" or "AddType application/x-httpd-php php .php"

as seen on Server Fault - Search for 'Server Fault'
I am taking over an application server and discover that it contain the following settings: AddType text/html php Although it works, but my understanding is that it should set as following: AddType application/x-httpd-php php .php What are the key differences between the two settings?… >>> More
mod_rewrite settings causes server to throw HTTP 500 errors instead of 404

as seen on Server Fault - Search for 'Server Fault'
Hello. I have a server with VBulletin forum (working under Apache 2.2, CentOS). The default settings for it in .htaccess are as follows: RewriteEngine on RewriteCond %{HTTP_HOST} ^gsmforum\.ru RewriteRule (.*) http://www.gsmforum.ru/$1 [R=301,L] # If you are having problems or are using VirtualDocumentRoot… >>> More
Problems installing Memcache (PECL extension)

as seen on Server Fault - Search for 'Server Fault'
I have installed memcached fine, and now I will need to install PECL extension memcache. Im running RedHat x86_64 es5. The installation gives me this: downloading memcache-2.2.6.tgz ... Starting to download memcache-2.2.6.tgz (35,957 bytes) ..........done: 35,957 bytes 11 source files, building running:… >>> More

Related posts about symbols

How to fix Ogre3d segfault with std::_Rb_tree_insert_and_rebalance ?

as seen on Game Development - Search for 'Game Development'
Hello all. I'm working on a 3d music visualizer using Ogre3d, basically it's a spectrum analizer, a lot like the old xmms plugin: (http)://www.youtube.com/watch?v=_6NKBiwYN24 It works well, the bars are drawn and updated, there are no framerate issues, but it crashes randomly. Sometimes it can run… >>> More
Know more about Cache Buffer Handle

as seen on Oracle Blogs - Search for 'Oracle Blogs'
??????«latch free:cache buffer handles???SQL????»?????cache buffer handle latch?????,?????????: “?????pin?buffer header???????buffer handle,??buffer handle?????????cache buffer handles?,??????cache buffer handles??????,???????cache???buffer handles,?????(reserved set)?????????????_db_handles_cached(… >>> More
windbg dv cmd fail - Private symbols (symbols.pri) are required for locals

as seen on Stack Overflow - Search for 'Stack Overflow'
i have a C++ application compiled with VS 2008 with pdb file enabled. After i tried to use dv command to display local vars, it shows the following message: Unable to enumerate locals, HRESULT0x80004005 Private symbols (symbols.pri) are required for locals. Type ".hh dbgerr005" for details… >>> More
Debugging symbols shipped on deploy

as seen on Stack Overflow - Search for 'Stack Overflow'
I wonder why software shall be deployed with its related debugging symbols. What are advantages and disadvantages? Are there code revealing issues (information security related issues)? >>> More
How to debug manifest errors?

as seen on Stack Overflow - Search for 'Stack Overflow'
I am creating an application that depends on third-party library, which in turn depends on MSVCP90D.dll (it was compiled with debug symbols). While starting the application it fails to start and provides an error message: I have found such library in C:\Program Files (x86)\Microsoft Visual Studio… >>> More