RE: [PHP] globals in functions
| From: | Cal Evans | Date: | Sat, 13 Apr 2002 17:58:58 +0000 |
| Subject: | RE: [PHP] globals in functions | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-92891@lists.php.net to get a copy of this message | ||
1: Globals are bad...m'kay.
You should never use globals. If your function needs a variable, you should
pass it in. There are exceptions to this rule but it's not a good idea to
program normally this way.
2: Is this a form?
It sounds (from the way you word it) that the variables are part of a form.
If so, pass $_POST into your form and it will be able to evaluate them. If
it's METHOD=GET then use $_GET. This is also a much more generic way to
program since if you add a new variable to the form, you don't have to make
it global in this function.
if (myFunction($_GET)){
echo "Everything is hunky dory!";
} else {
echo "Blow Chow";
}
function myFunction($formArray=null){
if (isNull($formArray){
return false;
}
if (isarray($formArray)){
return true;
} else {
return false;
}
} // function myFunction($formArray=null)
WARNING: I have not tried the code above. Use at your own risk. But the
concepts are there.
*
* Cal Evans
* Journeyman Programmer
* Techno-Mage
* http://www.calevans.com
*
-----Original Message-----
From: Paul Roberts [mailto:roberts_paul@bigfoot.com]
Sent: Saturday, April 13, 2002 12:37 PM
To: php-general@lists.php.net
Subject: [PHP] globals in functions
Is there a quick way to set all variables as global so that they are
avalible to a function, i'm doing an eval inside, so i need all the
submitted variables to be avalible, or do i have to decalre them
individualy.
Paul Roberts
roberts_paul@bigfoot.com
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