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@NogDogJun 14.2005 — #@NogDogJun 14.2005 — #The example you gave is a bit weird, with the third clause being just a space character and ending with a "||", but in theory, yes, you could do:
Here's an algorithm I've used sometimes:
php defaults?
for a textfield that asks for a number amount to be entered and is does not have parameter set to it, when i put an “if statement” requiring information to be entered do i put
if($variable == “0”){……} ?
or
if($variable == false){……} ?
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@NogDogJun 14.2005 — #[code=php]
# check to see if it is blank:
if($bal === "") { # do something }
# check to see if it is blank or 0:
if(empty($bal)) { # do something }
# check to see if it is boolean false (where 0 is not the same as false):
if($bal === FALSE) { # do something }
[/code]0
@NogDogJun 14.2005 — #The example you gave is a bit weird, with the third clause being just a space character and ending with a "||", but in theory, yes, you could do:[code=php]
if(empty($var1) || empty($var2) || empty($var3))
{
# error
}
else
{
# all required variables populated with non-zero values
}
[/code]Here's an algorithm I've used sometimes:
[code=php]
# required fields in format input_id => description:
$required = array("field1" => "Field One",
"field3" => "Field Three",
"field5" => "Field Five");
# initialize error message:
$error = "";
# check each required field:
foreach($required as $key => $val)
{
if(empty($_POST[$key]))
{
$error .= "<p>ERROR: You must enter a value for $val.</p>n";
}
}
if(!empty($error))
{
echo $error;
}
else
{
# proceed with processing of form...
}
[/code]