Skip to content

Instantly share code, notes, and snippets.

@getsource

getsource/GD_in_WordPress.md

Created July 27, 2012 20:47
Show Gist options
  • Save getsource/3190404 to your computer and use it in GitHub Desktop.
Save getsource/3190404 to your computer and use it in GitHub Desktop.
Download ZIP
GD in WordPress
Raw
GD_in_WordPress.md

GD in WordPress

From: http://www.php.net/manual/en/ref.image.php

Functions Used:

  • getimagesize
  • imagealphablending
  • imageantialias
  • imagecolorstotal
  • imagecopy
  • imagecopyresampled
  • imagecreatefromgif
  • imagecreatefromjpeg
  • imagecreatefrompng
  • imagecreatefromstring
  • imagecreatetruecolor
  • imagedestroy
  • imagegif
  • imageistruecolor
  • imagejpeg
  • imagepng
  • imagerotate
  • imagesavealpha
  • imagesx
  • imagesy
  • imagetruecolortopalette
  • imagetypes
  • iptcparse

Details:

  • getimagesize (svn :21358M ) macNull:wpbranch mike$ ack getimagesize wp-admin/custom-header.php 699: list( $width, $height, $type, $attr ) = getimagesize( $file ); 872: $size = @getimagesize( $cropped );

wp-admin/includes/image.php 56: $size = @getimagesize( $src_file ); 61: $size = @getimagesize( $src ); 117: $imagesize = getimagesize( $file ); 227: list( , , $sourceImageType ) = getimagesize( $file ); 249: getimagesize( $file, $info ); 343: $size = @getimagesize($path); 357: $info = @getimagesize($path);

wp-includes/deprecated.php 1980: $imagesize = getimagesize($src_file);

wp-includes/functions.php 1694: * Currently this function only supports validating images known to getimagesize(). 1716: if ( $type && 0 === strpos( $type, 'image/' ) && function_exists('getimagesize') ) { 1719: $imgstats = @getimagesize( $file ); 1721: // If getimagesize() knows what kind of image it really is and if the real MIME doesn't match the claimed MIME 1723: // This is a simplified array of MIMEs that getimagesize() can detect and their extensions 1725: $mime_to_ext = apply_filters( 'getimagesize_mimes_to_exts', array(

wp-includes/media.php 155: if ( ($thumb_file = wp_get_attachment_thumb_file($id)) && $info = getimagesize($thumb_file) ) { 423: $size = @getimagesize( $file ); 499: if ( !is_wp_error($resized_file) && $resized_file && $info = getimagesize($resized_file) ) { 624: @list($width, $height) = getimagesize($src_file);

  • imagealphablending (svn :21358M ) macNull:wpbranch mike$ ack imagealphablending wp-admin/includes/image.php 399: if ( function_exists('imagealphablending') && function_exists('imagesavealpha') ) { 400: imagealphablending($image, false);

wp-includes/media.php 1026: if ( is_resource($img) && function_exists('imagealphablending') && function_exists('imagesavealpha') ) { 1027: imagealphablending($img, false);

  • imageantialias (svn :21358M ) macNull:wpbranch mike$ ack imageantialias wp-admin/includes/image.php 76: if ( function_exists( 'imageantialias' ) ) 77: imageantialias( $dst, true );

  • imagecolorstotal (svn :21358M ) macNull:wpbranch mike$ ack imagecolorstotal wp-includes/media.php 439: imagetruecolortopalette( $newimage, false, imagecolorstotal( $image ) );

  • imagecopy (svn :21358M ) macNull:wpbranch mike$ ack imagecopy wp-admin/includes/image-edit.php 273: if ( imagecopy($dst, $img, 0, 0, $x, $y, $w, $h) ) {

  • imagecopyresampled (svn :21358M ) macNull:wpbranch mike$ ack imagecopyresampled wp-admin/includes/image-edit.php 262: if ( imagecopyresampled($dst, $img, 0, 0, $sx, $sy, $w, $h, $sw, $sh) ) { 372: imagecopyresampled( $preview, $img, 0, 0, 0, 0, $w2, $h2, $w, $h ); 481: if ( imagecopyresampled( $dst, $img, 0, 0, 0, 0, $fwidth, $fheight, $sX, $sY ) ) {

wp-admin/includes/image.php 79: imagecopyresampled( $dst, $src, 0, 0, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h );

wp-includes/media.php 323: * Retrieve calculated resized dimensions for use in imagecopyresampled(). 338: * @return bool|array False on failure. Returned array matches parameters for imagecopyresampled() PHP function. 389: // the return array matches the parameters to imagecopyresampled() 435: imagecopyresampled( $newimage, $image, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);

  • imagecreatefromgif (svn :21358M ) macNull:wpbranch mike$ ack imagecreatefromgif wp-admin/includes/image.php 391: $image = imagecreatefromgif($filepath);

wp-includes/media.php 1009: return function_exists('imagecreatefromgif');

  • imagecreatefromjpeg (svn :21358M ) macNull:wpbranch mike$ ack imagecreatefromjpeg wp-admin/includes/image.php 385: $image = imagecreatefromjpeg($filepath);

wp-includes/media.php 1005: return function_exists('imagecreatefromjpeg');

  • imagecreatefrompng (svn :21358M ) macNull:wpbranch mike$ ack imagecreatefrompng wp-admin/includes/image.php 388: $image = imagecreatefrompng($filepath);

wp-includes/media.php 1007: return function_exists('imagecreatefrompng');

  • imagecreatefromstring (svn :21358M ) macNull:wpbranch mike$ ack imagecreatefromstring wp-includes/media.php 253: if ( ! function_exists('imagecreatefromstring') ) 258: $image = imagecreatefromstring( file_get_contents( $file ) );

  • imagecreatetruecolor (svn :21358M ) macNull:wpbranch mike$ ack imagecreatetruecolor wp-includes/media.php 1025: $img = imagecreatetruecolor($width, $height);

  • imagedestroy (svn :21358M ) macNull:wpbranch mike$ ack imagedestroy wp-admin/includes/image-edit.php 245: imagedestroy($img); 263: imagedestroy($img); 274: imagedestroy($img); 375: imagedestroy($preview); 376: imagedestroy($img); 482: imagedestroy($img); 623: imagedestroy($img);

wp-admin/includes/image.php 81: imagedestroy( $src ); // Free up memory

wp-includes/media.php 442: imagedestroy( $image ); 471: imagedestroy( $newimage );

  • imagegif (svn :21358M ) macNull:wpbranch mike$ ack imagegif wp-admin/includes/image-edit.php 212: return imagegif($image); 230: return imagegif($image, $filename);

wp-includes/media.php 458: if ( !imagegif( $newimage, $destfilename ) )

  • imageistruecolor (svn :21358M ) macNull:wpbranch mike$ ack imageistruecolor wp-includes/media.php 438: if ( IMAGETYPE_PNG == $orig_type && function_exists('imageistruecolor') && !imageistruecolor( $image ) )

  • imagejpeg (svn :21358M ) macNull:wpbranch mike$ ack imagejpeg wp-admin/includes/image-edit.php 206: return imagejpeg($image, null, 90); 226: return imagejpeg( $image, $filename, apply_filters( 'jpeg_quality', 90, 'edit_image' ) );

wp-admin/includes/image.php 97: elseif ( imagejpeg( $dst, $dst_file, apply_filters( 'jpeg_quality', 90, 'wp_crop_image' ) ) )

wp-includes/media.php 467: if ( !imagejpeg( $newimage, $destfilename, apply_filters( 'jpeg_quality', $jpeg_quality, 'image_resize' ) ) )

  • imagepng (svn :21358M ) macNull:wpbranch mike$ ack imagepng wp-admin/includes/image-edit.php 209: return imagepng($image); 228: return imagepng($image, $filename);

wp-admin/includes/image.php 95: if ( 'image/png' == $image_type && imagepng( $dst, $dst_file ) )

wp-includes/media.php 461: if ( !imagepng( $newimage, $destfilename ) )

  • imagerotate (svn :21358M ) macNull:wpbranch mike$ ack imagerotate wp-admin/includes/image-edit.php 42: // On some setups GD library does not provide imagerotate() - Ticket #11536 43: if ( function_exists('imagerotate') ) { ?> 47: $note_gdlib = esc_attr__('Image rotation is not supported by your web host (function imagerotate() is missing)'); 242: if ( function_exists('imagerotate') ) { 243: $rotated = imagerotate($img, $angle, 0);

  • imagesavealpha (svn :21358M ) macNull:wpbranch mike$ ack imagesavealpha wp-admin/includes/image.php 399: if ( function_exists('imagealphablending') && function_exists('imagesavealpha') ) { 401: imagesavealpha($image, true);

wp-includes/media.php 1026: if ( is_resource($img) && function_exists('imagealphablending') && function_exists('imagesavealpha') ) { 1028: imagesavealpha($img, true);

  • imagesx (svn :21358M ) macNull:wpbranch mike$ ack imagesx wp-admin/includes/image-edit.php 253: $w = imagesx($img); 343: $scale = 1 / _image_get_preview_ratio( imagesx($img), imagesy($img) ); // discard preview scaling 365: $w = imagesx($img); 473: $sX = imagesx($img); 559: $meta['width'] = imagesx($img);

  • imagesy (svn :21358M ) macNull:wpbranch mike$ ack imagesy wp-admin/includes/image-edit.php 254: $h = imagesy($img); 343: $scale = 1 / _image_get_preview_ratio( imagesx($img), imagesy($img) ); // discard preview scaling 366: $h = imagesy($img); 474: $sY = imagesy($img); 560: $meta['height'] = imagesy($img);

  • imagetruecolortopalette (svn :21358M ) macNull:wpbranch mike$ ack imagetruecolortopalette wp-includes/media.php 439: imagetruecolortopalette( $newimage, false, imagecolorstotal( $image ) );

  • imagetypes (svn :21358M ) macNull:wpbranch mike$ ack imagetypes wp-includes/media.php 993: if ( function_exists('imagetypes') ) { 996: return (imagetypes() & IMG_JPG) != 0; 998: return (imagetypes() & IMG_PNG) != 0; 1000: return (imagetypes() & IMG_GIF) != 0;

  • iptcparse (svn :21358M ) macNull:wpbranch mike$ ack iptcparse wp-admin/includes/image.php 248: if ( is_callable( 'iptcparse' ) ) { 252: $iptc = iptcparse( $info['APP13'] );

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment