Old PHP GD code no longer working - php

Question

I have a function which resizes images and whilst it works fine on my test server, it doesn#t work on the new live server. The error message i get is
Warning: imagejpeg(): Unable to open ' /home/sites/public_html/images/2013-24-1-240x300.jpg' for writing: No such file or directory in /home/sites/public_html/includes/functions/html_output.php on line 352
line 352 in the code below is the imagejpeg line near to the bottom. If its creating the image on the fly, I dont understand why its trying to open the file.
Images folder is writeable (changed to 777 to check) as the original image is showing fine. GD is enabled on the live server bundled (2.0.34 compatible)
Both versions of PHP and GD are the same now on both servers. Only difference is test server is running WAMP and live is a linux.
function image_resample($src,$width,$height) {
define(JPEGQUALITY, 75);
define(ALLOWSQUASH,0.10);
if ($src=='') {
return $src;
}
$i = #getimagesize( $src ); // 1-gif (ignore), 2-jpeg, 3-png
if (!(($width == SMALL_IMAGE_WIDTH) && ($height == SMALL_IMAGE_HEIGHT)) &&
!(($width == MEDIUM_IMAGE_WIDTH) && ($height == MEDIUM_IMAGE_HEIGHT))&&
!(($width == LARGE_IMAGE_WIDTH) && ($height == LARGE_IMAGE_HEIGHT))) {
return $src; // can amend to work with other images
}
if (!( ($i[2] == 3) || ($i[2] ==2))) {
return $src;
}
$file = preg_replace( '/\.([a-z]{3,4})$/i', "-{$width}x{$height}.\\1", $src ); // name of resampled image
if (is_file( $file ) ) {
return $file;
}
$scr_w = $i[0];
$scr_h = $i[1];
if (($scr_w * $scr_h * $width * $height) == 0) {
return $src;
}
$howsquashed = ($width / $height * $scr_h / $scr_w);
if (((1 / (1 + ALLOWSQUASH)) < $howsquashed) && ($howsquashed < (1 + ALLOWSQUASH))) $simpleway='true';
$scalefactor = min($width/$scr_w, $height/$scr_h);
$scaled_w = (int)($scr_w * $scalefactor);
$scaled_h = (int)($scr_h * $scalefactor);
$offset_w = max(0,round(($width - $scaled_w) / 2,0));
$offset_h = max(0,round(($height - $scaled_h) / 2));
$dst = DIR_FS_CATALOG . '/' . $file;
$dstim = #imagecreatetruecolor ($width, $height);
$background_color = imagecolorallocate ($dstim, 255, 255, 255);
imagefilledrectangle($dstim, 0, 0, $width, $height, $background_color);
if ( $i[2] == 2) {
$srcim = #ImageCreateFromJPEG ($src); // open
}
elseif ( $i[2] == 3) {
$srcim = #ImageCreateFromPNG ($src);
}
if ($simpleway == 'true') {
imagecopyresampled ($dstim, $srcim, 0, 0, 0, 0, $width, $height, $scr_w, $scr_h);
}
else {
$intim = #imagecreatetruecolor ($width, $height);
imagecopyresampled ($intim, $srcim, $offset_w, $offset_h, 0, 0, $scaled_w, $scaled_h, $scr_w, $scr_h);
imagecopy ( $dstim, $intim, $offset_w, $offset_h, $offset_w, $offset_h, $scaled_w, $scaled_h);
imagedestroy ($intim);
}
if ( $i[2] == 2) {
imagejpeg ($dstim , $dst , JPEGQUALITY);
}
elseif ( $i[2] == 3) {
imagepng ($dstim , $dst);
}
imagedestroy ($srcim);
imagedestroy ($dstim);
return $file; // Use the newly resampled image
}

Answer 1

the message is pretty clear
Warning: imagejpeg(): Unable to open ' /home/sites/public_html/images/2013-24-1-240x300.jpg'
for writing: No such file or directory in
/home/sites/public_html/includes/functions/html_output.php on line 352
if the directory exists chmod it so the apache user can write to it.
if the directory doesnt exist create it and then chmod it (644 should be enough)
if the file exists already - it can not over write it, So chmod the file (its likely you used SCP to transfer it and its under the user you SCP'ed as) ls -l to confirm the permissions