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Editorial Team
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Asked: 2026-06-12T10:38:09+00:00

I’m using the code below to re-size images in php. Its inside a function.

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I’m using the code below to re-size images in php. Its inside a function. It executes if $imgSource is true. If something in this failed, I’d like it to return false (maybe imagecopyresampled failed or something else failed). Thing is, where do I put the return true or false statement. Right now it’ll return false even if things went ok or not. Do I have to write if statements for all that’s in there. Can u please suggest a good way to do this.

if ($imgSource)
{

list($width,$height)=getimagesize($thisImage);

$dispImageWidth=500;
$dispImageHeight=($height/$width)*$dispImageWidth;
$tempDisplayImage=imagecreatetruecolor($dispImageWidth,$dispImageHeight);

$thumbImageWidth=250;
$thumbImageHeight=($height/$width)*$thumbImageWidth;
$tempThumbImage=imagecreatetruecolor($thumbImageWidth,$thumbImageHeight);

imagecopyresampled($tempDisplayImage,$imgSource,0,0,0,0,$dispImageWidth,$dispImageHeight,$width,$height);
imagecopyresampled($tempThumbImage,$imgSource,0,0,0,0,$thumbImageWidth,$thumbImageHeight,$width,$height);

$displayImageTarget = $thisPath.'disp_'.$fileName;
$thumbImageTarget = $thisPath.'thumb_'.$fileName;

imagejpeg($tempDisplayImage,$displayImageTarget,100);
imagejpeg($tempThumbImage,$thumbImageTarget,100);

imagedestroy($imgSource);
imagedestroy($tempDisplayImage);
imagedestroy($tempThumbImage);
unlink($thisImage); 

//Where do I put the return true or false?

}
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1 Answer

  1. Editorial Team

    Do some thing like if(! your statement ) return false;

    CODE
    if ($imgSource)
    {

    list($width,$height)=getimagesize($thisImage);

$dispImageWidth=500;
$dispImageHeight=($height/$width)*$dispImageWidth;
$tempDisplayImage=imagecreatetruecolor($dispImageWidth,$dispImageHeight);

$thumbImageWidth=250;
$thumbImageHeight=($height/$width)*$thumbImageWidth;
$tempThumbImage=imagecreatetruecolor($thumbImageWidth,$thumbImageHeight);

if(! imagecopyresampled($tempDisplayImage,$imgSource,0,0,0,0,$dispImageWidth,$dispImageHeight,$width,$height)) return false;
if(! imagecopyresampled($tempThumbImage,$imgSource,0,0,0,0,$thumbImageWidth,$thumbImageHeight,$width,$height)) return false;

$displayImageTarget = $thisPath.'disp_'.$fileName;
$thumbImageTarget = $thisPath.'thumb_'.$fileName;

if(!imagejpeg($tempDisplayImage,$displayImageTarget,100)) return false;
if(!imagejpeg($tempThumbImage,$thumbImageTarget,100)) return false;

if(!imagedestroy($imgSource)) return false;
if(!imagedestroy($tempDisplayImage)) return false;
if(!imagedestroy($tempThumbImage)) return false;
if(!unlink($thisImage)) return false;

return true;


}

    if you only want to check the unset

    just do return unlink($thisImage);

    unlink Returns TRUE on success or FALSE on failure. see the php manual

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