Problem outputting image with phpThumbOf and runSnippet()

116 Posts

chr.s Reply #1, 12 years, 5 months ago

I bit the bullet and finally got round to writing some PHP, but have run into a problem I just can't figure out.

I'm trying to get phpthumb to work from within a snippet I'm writing - I think I have almost all the pieces, but I've a hunch that maybe I'm not formatting the image filepath correctly.

This is the code I have:

$input = "http://www.domain.com/assets/files/".$cover;
$width = 610;
$height = 504;
$options = "w=$width&h=$height&zc=1";   
$thumb = $modx->runSnippet("phpthumbof",array('input' => $input, 'options' => $options));

If I comment out the last line, the page loads without errors, but uncommented I get an error and nothing else:

The image “http://www.domain.com/” cannot be displayed because it contains errors.

But if I echo the value of $input, it does give the image URL, so I assume that phpthumb doesn't want a URI string...?

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191 Posts

jgrant Reply #2, 12 years, 5 months ago

Things are much simpler if you give it a path on the file system instead of a URL.

$input = MODX_ASSETS_PATH . "files/$cover";
if (is_readable($input)) {  // not a bad idea to check that there's really a file there
    $thumb = $modx->runSnippet(
        'phpthumbof', array(
        'input' => $input,
        'options' => 'w=610&h=504&zc=1'
    ));
}
else {
    // log an error message, return a placeholder image, etc.
}

Extras :: pThumb • Resizer • imageSlim • setPlaceholders

116 Posts

chr.s Reply #3, 12 years, 5 months ago

Aha - thank you.
It seems that's exactly what the issue was.

116 Posts

chr.s Reply #4, 12 years, 5 months ago

One other thing's bugging me. I can't seem to get anything in the else block to execute. currently, I have the following:

$input = MODX_ASSETS_PATH . "files/" . $cover;
if (is_readable($input)) {
    $thumb = $modx->runSnippet('phpthumbof', array(
        'input'   =>	$input,
        'options' =>	'w=600&h=450&zc=1')
    );
}
else {
    $thumb = MODX_ASSETS_PATH . "img/cover-image-not-available.gif";
}

It doesn't matter what I put in the else statement - be it an echo command etc - it never runs, even when there's no cover image set.

Here's the full code, in case I'm missing something else:

function outputList($a,$b,$format){

	global $modx;

	// PAST PROJECTS FROM HERE

    echo '<div id="past-projects"><h2>Past<br/>Projects</h2><ul>';

	foreach ($a as $p) {							// Loop through projects
		$id = $p['id'];								// Get project ID
		foreach ($b as $t) {						// Iterate over TVs
			if ($t['contentid'] == $id) {			// Reduce selection to relevent
				switch ($t['tmplvarid']) {
					case 3:
						$cover = $t['value'];
						break;
					case 5:
						$start = formatDate($t['value']);
						break;
					case 6:
						$end = formatDate($t['value']);
						break;
				}
			}
		}

		$input = MODX_ASSETS_PATH . "files/" . $cover;
        if (is_readable($input)) {					// Check a cover photo was actually selected
            $thumb = $modx->runSnippet('phpthumbof', array(
                'input'   =>	$input,
                'options' =>	'w=600&h=450&zc=1')
            );
        }
		else {
			$thumb = MODX_ASSETS_PATH . "img/cover-image-not-available.gif";
		}

		echo $modx->getChunk('Past-Projects-Tpl',array(
			'name'    =>	$p['pagetitle'],
			'url'     =>	$p['uri'],
			'start'   =>	$start,
			'end'     =>	$end,
			'content' =>	$p['content'],
			'imgsrc'  =>	$thumb)
		);

		$cover = null;
		$start = null;
		$end = null;

	};

    echo '</ul>';

};