function catch_that_image() {
global $post, $posts;
$first_img = '';
ob_start();
ob_end_clean();
$output = preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post->post_content, $matches);
$first_img = $matches [1] [0];
if(empty($first_img)){ //Defines a default image
$first_img = "/images/default.jpg";
}
return $first_img;
}
function aq_resize( $url, $width, $height = null, $crop = null, $single = true ) {
//validate inputs
if(!$url OR !$width ) return false;
//define upload path & dir
$upload_info = wp_upload_dir();
$upload_dir = $upload_info['basedir'];
$upload_url = $upload_info['baseurl'];
//check if $img_url is local
if(strpos( $url, home_url() ) === false) return false;
//define path of image
$rel_path = str_replace( $upload_url, '', $url);
$img_path = $upload_dir . $rel_path;
//check if img path exists, and is an image indeed
if( !file_exists($img_path) OR !getimagesize($img_path) ) return false;
//get image info
$info = pathinfo($img_path);
$ext = $info['extension'];
list($orig_w,$orig_h) = getimagesize($img_path);
//get image size after cropping
$dims = image_resize_dimensions($orig_w, $orig_h, $width, $height, $crop);
$dst_w = $dims[4];
$dst_h = $dims[5];
//use this to check if cropped image already exists, so we can return that instead
$suffix = "{$dst_w}x{$dst_h}";
$dst_rel_path = str_replace( '.'.$ext, '', $rel_path);
$destfilename = "{$upload_dir}{$dst_rel_path}-{$suffix}.{$ext}";
//if orig size is smaller
if($width >= $orig_w) {
if(!$dst_h) :
//can't resize, so return original url
$img_url = $url;
$dst_w = $orig_w;
$dst_h = $orig_h;
else :
//else check if cache exists
if(file_exists($destfilename) && getimagesize($destfilename)) {
$img_url = "{$upload_url}{$dst_rel_path}-{$suffix}.{$ext}";
}
//else resize and return the new resized image url
else {
$resized_img_path = image_resize( $img_path, $width, $height, $crop );
$resized_rel_path = str_replace( $upload_dir, '', $resized_img_path);
$img_url = $upload_url . $resized_rel_path;
}
endif;
}
//else check if cache exists
elseif(file_exists($destfilename) && getimagesize($destfilename)) {
$img_url = "{$upload_url}{$dst_rel_path}-{$suffix}.{$ext}";
}
//else, we resize the image and return the new resized image url
else {
$resized_img_path = image_resize( $img_path, $width, $height, $crop );
$resized_rel_path = str_replace( $upload_dir, '', $resized_img_path);
$img_url = $upload_url . $resized_rel_path;
}
//return the output
if($single) {
//str return
$image = $img_url;
} else {
//array return
$image = array (
0 => $img_url,
1 => $dst_w,
2 => $dst_h
);
}
return $image;
}
