Topic: PHP "Undefined constant" error - How to correct?

[K6GKM]

Hello Everyone,

Doing a little website maintenance today, and I checked my php error_log file for the first time in a long time.  I have a script throwing a series of errors out every time it's executed, and I was hoping the brains in this forum could help me correct it.  Here's the error:

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[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 356
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 436
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 437
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 438
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 439
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 440
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 441
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 450
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 451
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 452
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 453
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 454
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 455
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 464
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 465
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 466
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 467
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 468
[04-Jan-2022 12:15:01 America/Los_Angeles] PHP Warning:  Use of undefined constant imagesDir - assumed 'imagesDir' (this will throw an Error in a future version of PHP) in ***REDACTED***/wxaqirss.php on line 469
I've loaded fresh copies of the wxaqirss.php package obtained from the legacy scripts page on Mr. Ken True's website, but I just can't seem to make this pesky error go away.  Line 45 sets $imagesDir to a directory of your choice, but the comments say it may or may not be required.  I've tried uncommenting that line, but I still get the error.  The script in question (located at CamWX.com/wxaqirss.php) is attached here (in txt format).  Could anyone offer any insight?

Many Thanks!

[saratogaWX]

Ahh... the code has

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// Images Directory (may not be needed, remove the // if needed)
// $imagesDir = "./ajax-images";
but, the comment is not quite right.. it is needed.  So change it to

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// Images Directory
 $imagesDir = "./ajax-images";


[K6GKM]

Hi Ken,

Thanks so much for the lightning quick reply.  I've tried uncommenting that line, but the problem still persists.    

[saratogaWX]

If you're still getting errata, try changing all the

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<?php print ${imagesDir}?> to

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<?php print $imagesDir; ?>

[K6GKM]

Thank you, Ken.  After making the changes to the print statements, the errors cleared up.   

Thanks again, and take care.