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jlengstorf/grab thumb url.php

Last active September 14, 2024 01:28
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Revisions

  1. Jason Lengstorf revised this gist Jan 24, 2014. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion grab thumb url.php
    View file
    Original file line number Diff line number Diff line change
    @@ -6,7 +6,7 @@
    * @param string $size The image size to retrieve
    * @return string The image URL to use
    */
    function get_thumb_url($text, $size){
    function rw_get_thumb_url($text, $size){
    global $post;
    $imageurl = FALSE;
    $needs_resize = TRUE;
  2. Jason Lengstorf revised this gist Jan 24, 2014. 1 changed file with 18 additions and 1 deletion.
    19 changes: 18 additions & 1 deletion grab thumb url.php
    View file
    Original file line number Diff line number Diff line change
    @@ -1,5 +1,11 @@
    <?php

    /**
    * Retrieves the thumbnail URL to use for a post
    * @param string $text The body of the post (get_content)
    * @param string $size The image size to retrieve
    * @return string The image URL to use
    */
    function get_thumb_url($text, $size){
    global $post;
    $imageurl = FALSE;
    @@ -57,6 +63,12 @@ function get_thumb_url($text, $size){
    return $imageurl;
    }

    /**
    * Creates a resized image, attaches it to the parent post as a featured image
    * @param string $url The URL of the image to resize
    * @param string $size The image size (e.g. 'thumbnail', 'medium')
    * @return string The resized image's URL
    */
    function resize_and_save_image($url, $size) {
    global $post;
    $image = wp_get_image_editor($url);
    @@ -100,6 +112,11 @@ function resize_and_save_image($url, $size) {
    }
    }

    /**
    * Retrieves the dimensions for a given image size
    * @param string $size The image size (e.g. 'thumbnail', 'medium')
    * @return array The width, height, and crop values for the image size
    */
    function get_image_crop_dimensions( $size ) {
    // Checks if the image is one of the default WP sizes
    if (in_array($size, array('thumb', 'medium', 'large'))) {
    @@ -126,4 +143,4 @@ function get_image_crop_dimensions( $size ) {
    'height' => $height,
    'crop' => $crop,
    );
    }
    }
  3. Jason Lengstorf revised this gist Jan 24, 2014. 1 changed file with 126 additions and 48 deletions.
    174 changes: 126 additions & 48 deletions grab thumb url.php
    View file
    Original file line number Diff line number Diff line change
    @@ -1,51 +1,129 @@
    <?php

    function rw_thumb_url($text, $size){
    global $post;
    $imageurl="";

    // Check to see which image is set as "Featured Image"
    $featuredimg = get_post_thumbnail_id($post->ID);

    // Get source for featured image
    $img_src = wp_get_attachment_image_src($featuredimg, $size);

    // Set $imageurl to Featured Image
    $imageurl=$img_src[0];

    // If there is no "Featured Image" set, move on and get the first image attached to the post
    if (!$imageurl) {
    // Extract the thumbnail from the first attached imaged
    $allimages =&get_children('post_type=attachment&post_mime_type=image&post_parent=' . $post->ID );

    foreach ($allimages as $img){
    $img_src = wp_get_attachment_image_src($img->ID, $size);
    break;
    }
    // Set $imageurl to first attached image
    $imageurl=$img_src[0];
    }

    // If there is no image attached to the post, look for anything that looks like an image and get that
    if (!$imageurl) {
    preg_match('/<\s*img [^\>]*src\s*=\s*[\""\']?([^\""\'>]*)/i' , $text, $matches);
    $imageurl=$matches[1];
    }

    // If there's no image attached or inserted in the post, look for a YouTube video
    if (!$imageurl){
    preg_match("/([a-zA-Z0-9\-\_]+\.|)youtube\.com\/watch(\?v\=|\/v\/)([a-zA-Z0-9\-\_]{11})([^<\s]*)/", $text, $matches2);
    $youtubeurl = $matches2[0];
    $videokey = $matches2[3];
    if (!$youtubeurl) {
    preg_match("/([a-zA-Z0-9\-\_]+\.|)youtu\.be\/([a-zA-Z0-9\-\_]{11})([^<\s]*)/", $text, $matches2);
    $youtubeurl = $matches2[0];
    $videokey = $matches2[2];
    }
    if ($youtubeurl)
    $imageurl = "http://i.ytimg.com/vi/{$videokey}/0.jpg";
    }

    // Spit out the image path
    return $imageurl;
    function get_thumb_url($text, $size){
    global $post;
    $imageurl = FALSE;
    $needs_resize = TRUE;

    // Check to see which image is set as "Featured Image"
    $featuredimg = get_post_thumbnail_id($post->ID);

    // Get source for featured image
    $img_src = wp_get_attachment_image_src($featuredimg, $size);
    if ($img_src!==FALSE) {
    $imageurl = $img_src[0];
    $needs_resize = FALSE;
    }

    // If there is no "Featured Image" set, move on and get the first image attached to the post
    if (!$imageurl) {
    // Extract the thumbnail from the first attached image
    $allimages = get_children('post_type=attachment&post_mime_type=image&post_parent=' . $post->ID );

    foreach ($allimages as $img){
    $img_src = wp_get_attachment_image_src($img->ID, $size);
    break;
    }
    // Set $imageurl to first attached image
    $imageurl=$img_src[0];
    }

    // If there is no image attached to the post, look for anything that looks like an image and get that
    if (!$imageurl) {
    preg_match('/<\s*img [^\>]*src\s*=\s*[\""\']?([^\""\'>]*)/i', $text, $matches);
    $imageurl= array_key_exists(1, $matches) ? $matches[1] : FALSE;
    }

    // If there's no image attached or inserted in the post, look for a YouTube video
    if (!$imageurl){
    preg_match("/([a-zA-Z0-9\-\_]+\.|)youtube\.com\/watch(\?v\=|\/v\/)([a-zA-Z0-9\-\_]{11})([^<\s]*)/", $text, $matches);

    $youtubeurl = array_key_exists(0, $matches) ? $matches[0] : FALSE;
    $videokey = array_key_exists(3, $matches) ? $matches[3] : FALSE;
    if (!$youtubeurl) {
    preg_match("/([a-zA-Z0-9\-\_]+\.|)youtu\.be\/([a-zA-Z0-9\-\_]{11})([^<\s]*)/", $text, $matches);
    $youtubeurl = array_key_exists(0, $matches) ? $matches[0] : FALSE;
    $videokey = array_key_exists(2, $matches) ? $matches[2] : FALSE;
    }
    if ($youtubeurl)
    $imageurl = "http://i.ytimg.com/vi/{$videokey}/0.jpg";
    }

    if ($needs_resize===TRUE) {
    $imageurl = resize_and_save_image($imageurl, $size);
    }

    // Spit out the image path
    return $imageurl;
    }

    function resize_and_save_image($url, $size) {
    global $post;
    $image = wp_get_image_editor($url);
    if (!is_wp_error($image)) {
    // Loads dimensions for the custom size
    extract(get_image_crop_dimensions($size));

    // Determines the location where the new image should be saved
    $upload_dir = wp_upload_dir();
    $path = $upload_dir['path'];
    $dest = $image->generate_filename($width.'x'.$height, $path);

    // Resizes and saves the new image
    $image->resize($width, $height, $crop);
    $image->save($dest);

    // Saves the new image in the media library
    $wp_filetype = wp_check_filetype(basename($dest), NULL);
    $attachment = array(
    'guid' => $upload_dir['url'] . '/' . basename($dest),
    'post_mime_type' => $wp_filetype['type'],
    'post_title' => preg_replace('/\.[^.]+$/', '', basename($dest)),
    'post_content' => '',
    'post_status' => 'inherit'
    );
    $attach_id = wp_insert_attachment($attachment, $dest, $post->ID);

    // Includes image.php so wp_generate_attachment_metadata() will work
    require_once( ABSPATH . 'wp-admin/includes/image.php' );
    $attach_data = wp_generate_attachment_metadata($attach_id, $dest);
    wp_update_attachment_metadata($attach_id, $attach_data);

    // Sets the new image as the post's featured image
    update_post_meta($post->ID, '_thumbnail_id', $attach_id);

    // Returns the new source
    $new_url = wp_get_attachment_image_src($attach_id, $size);
    return $new_url[0];
    } else {
    return FALSE;
    }
    }

    function get_image_crop_dimensions( $size ) {
    // Checks if the image is one of the default WP sizes
    if (in_array($size, array('thumb', 'medium', 'large'))) {
    $width = get_option($size . '_size_w');
    $height = get_option($size . '_size_h');
    $crop = $size==='thumb' ? TRUE : FALSE;
    } else {
    // Loads the custom image sizes
    global $_wp_additional_image_sizes;
    if (array_key_exists($size, $_wp_additional_image_sizes)) {
    $width = $_wp_additional_image_sizes[$size]['width'];
    $height = $_wp_additional_image_sizes[$size]['height'];
    $crop = $_wp_additional_image_sizes[$size]['crop'];
    } else {
    // Without a match, the thumbnail size is the default
    $width = get_option('thumb_size_w');
    $height = get_option('thumb_size_h');
    $crop = TRUE;
    }
    }

    return array(
    'width' => $width,
    'height' => $height,
    'crop' => $crop,
    );
    }
  4. Roger Stringer renamed this gist Jan 24, 2014. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion grab thumb url → grab thumb url.php
    View file
    Original file line number Diff line number Diff line change
    @@ -1,6 +1,6 @@
    <?php

    function get_thumb_url($text, $size){
    function rw_thumb_url($text, $size){
    global $post;
    $imageurl="";

  5. Roger Stringer created this gist Jan 24, 2014.
    51 changes: 51 additions & 0 deletions grab thumb url
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,51 @@
    <?php

    function get_thumb_url($text, $size){
    global $post;
    $imageurl="";

    // Check to see which image is set as "Featured Image"
    $featuredimg = get_post_thumbnail_id($post->ID);

    // Get source for featured image
    $img_src = wp_get_attachment_image_src($featuredimg, $size);

    // Set $imageurl to Featured Image
    $imageurl=$img_src[0];

    // If there is no "Featured Image" set, move on and get the first image attached to the post
    if (!$imageurl) {
    // Extract the thumbnail from the first attached imaged
    $allimages =&get_children('post_type=attachment&post_mime_type=image&post_parent=' . $post->ID );

    foreach ($allimages as $img){
    $img_src = wp_get_attachment_image_src($img->ID, $size);
    break;
    }
    // Set $imageurl to first attached image
    $imageurl=$img_src[0];
    }

    // If there is no image attached to the post, look for anything that looks like an image and get that
    if (!$imageurl) {
    preg_match('/<\s*img [^\>]*src\s*=\s*[\""\']?([^\""\'>]*)/i' , $text, $matches);
    $imageurl=$matches[1];
    }

    // If there's no image attached or inserted in the post, look for a YouTube video
    if (!$imageurl){
    preg_match("/([a-zA-Z0-9\-\_]+\.|)youtube\.com\/watch(\?v\=|\/v\/)([a-zA-Z0-9\-\_]{11})([^<\s]*)/", $text, $matches2);
    $youtubeurl = $matches2[0];
    $videokey = $matches2[3];
    if (!$youtubeurl) {
    preg_match("/([a-zA-Z0-9\-\_]+\.|)youtu\.be\/([a-zA-Z0-9\-\_]{11})([^<\s]*)/", $text, $matches2);
    $youtubeurl = $matches2[0];
    $videokey = $matches2[2];
    }
    if ($youtubeurl)
    $imageurl = "http://i.ytimg.com/vi/{$videokey}/0.jpg";
    }

    // Spit out the image path
    return $imageurl;
    }