| Can't instantiate a class with "defined"
Parse error |
Patrick Taylor
msg:3593323 | 7:06 pm on Mar 6, 2008 (gmt 0) |
Code fragment: // Get the class template
include ('inc/page.class.php'); // Page name
define('PLUME', $cleanfiletitle);
PLUME = new Page; // Parse error on this line // For .txt filename
$filename = "' . $textfilename . '"; // If it exists...
if (file_exists($filename)) {
$file_contents = file_get_contents($filename);
$output = $file_contents;
} else {
$output = "No content. The associated text file could not be found.";
} // Variables required by class template
PLUME->Textfilename = "' . $textfilename . '";
PLUME->SetContent($output);
PLUME->Template(); |
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My class is Page. Everything works fine if I use a php variable $cleanfiletitle instead of PLUME. I would appreciate knowing why I get a parse error for the line indicated. Patrick
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coopster
msg:3593355 | 7:32 pm on Mar 6, 2008 (gmt 0) |
PLUME in this case is a constant [php.net] and a constant is an identifier (name) for a simple value. As the name suggests, that value cannot change during the execution of the script.
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whoisgregg
msg:3593358 | 7:33 pm on Mar 6, 2008 (gmt 0) |
There are two reasons you get an error. First, constants cannot, by definition, be changed after they are initially set. Second, they can only be a scalar value (in other words, numbers, strings, and booleans are okay, but an object reference is not okay.) Complete details about defining constants here [us3.php.net]. Added: coop beat me to it. :)
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Patrick Taylor
msg:3593360 | 7:41 pm on Mar 6, 2008 (gmt 0) |
I see. Many thanks for both answers. Patrick
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