[PHP] Using Variable Variables from form values inside a function
Is it possible to use variable variables from form values inside a function.
For example when submitting form values, this works fine:
foreach($_POST as $key=$value) {
if (empty($$key)) {
print empty value $keybr;
}
}
but, this doesn't:
function myFunction() {
foreach($_POST as $key=$value) {
if (empty($$key)) {
print empty value $keybr;
}
}
}
Anyone dealt with this?
===
Ron Dyck
WebbTech
www.webbtech.net
[EMAIL PROTECTED]
905 734-1164
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Re: [PHP] Using Variable Variables from form values inside a function
- Original Message -
From: Ron Dyck [EMAIL PROTECTED]
but, this doesn't:
function myFunction() {
foreach($_POST as $key=$value) {
if (empty($$key)) {
print empty value $keybr;
}
}
}
Since php variable scope is local unless you define it global, that won't
work that way. You might try (just guessing here):
function myFunction() {
foreach($_POST as $key=$value) {
global $$key;
if (empty($$key)) {
print empty value $keybr;
}
}
}
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Re: [PHP] Using Variable Variables from form values inside a function
but, this doesn't:
function myFunction() {
foreach($_POST as $key=$value) {
if (empty($$key)) {
print empty value $keybr;
}
}
}
Since php variable scope is local unless you define it global, that won't
work that way. You might try (just guessing here):
function myFunction() {
foreach($_POST as $key=$value) {
global $$key;
if (empty($$key)) {
print empty value $keybr;
}
}
}
That did it.
I assumed that since $_POST was global, the key/value pair would be. Guess
not :-|
Thanks!
ron
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RE: [PHP] Using Variable Variables from form values inside a function
-Original Message-
From: Ron Dyck [mailto:[EMAIL PROTECTED]]
Sent: 18 February 2002 13:38
[... snip working example]
but, this doesn't:
function myFunction() {
foreach($_POST as $key=$value) {
if (empty($$key)) {
print empty value $keybr;
}
}
}
What's wrong with:
if (empty($_POST[$key])):
?
This should work whether or not register_globals is switched on, and is therefore much
to be preferred.
Cheers!
Mike
-
Mike Ford, Electronic Information Services Adviser,
Learning Support Services, Learning Information Services,
JG125, James Graham Building, Leeds Metropolitan University,
Beckett Park, LEEDS, LS6 3QS, United Kingdom
Email: [EMAIL PROTECTED]
Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211
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[PHP] Using Variable Variables...
$_VARIABLE_ = chkContact.$i; $_VAR_ = $$_VARIABLE_; How do I make this work when $chkContact is a global variable? This returns an empty value because it does not see that $chkContact is a global variable... Thankz in advance for your help!! -- [ Swift eNetwork ] Matrix http://matrix.swifte.net/ -- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Using Variable Variables...
on 7/26/01 6:46 PM, [EMAIL PROTECTED] at [EMAIL PROTECTED] wrote: $_VARIABLE_ = chkContact.$i; $_VAR_ = $$_VARIABLE_; How do I make this work when $chkContact is a global variable? This returns an empty value because it does not see that $chkContact is a global variable... maybe try global $_VARIABLE_, $$_VARIABLE_; -- mike cullerton -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
