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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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337 | elseif ( 'image/png' == $mime_type ) { |
338 | // convert from full colors to index colors, like original PNG. |
339 | if ( function_exists('imageistruecolor') && ! imageistruecolor( $image ) ) |
340 | imagetruecolortopalette( $image, false, imagecolorstotal( $image ) ); |
341 |
|
342 | if ( ! $this->make_image( $filename, 'imagepng', array( $image, $filename ) ) ) |
343 | return new WP_Error( 'image_save_error', __('Image Editor Save Failed') ); |
344 | } |
345 | elseif ( 'image/jpeg' == $mime_type ) { |
346 | if ( ! $this->make_image( $filename, 'imagejpeg', array( $image, $filename, apply_filters( 'jpeg_quality', $this->quality, 'image_resize' ) ) ) ) |
347 | return new WP_Error( 'image_save_error', __('Image Editor Save Failed') ); |
348 | } |
349 | else { |
350 | return new WP_Error( 'image_save_error', __('Image Editor Save Failed') ); |
351 | } |
352 |
|
353 | // Set correct file permissions |
354 | $stat = stat( dirname( $filename ) ); |
355 | $perms = $stat['mode'] & 0000666; //same permissions as parent folder, strip off the executable bits |