diff options
Diffstat (limited to 'system/libraries/Image_lib.php')
-rw-r--r-- | system/libraries/Image_lib.php | 565 |
1 files changed, 424 insertions, 141 deletions
diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php index 1ab8b23e0..4735dfd08 100644 --- a/system/libraries/Image_lib.php +++ b/system/libraries/Image_lib.php @@ -36,56 +36,336 @@ */ class CI_Image_lib { - public $image_library = 'gd2'; // Can be: imagemagick, netpbm, gd, gd2 + /** + * PHP extension/library to use for image manipulation + * Can be: imagemagick, netpbm, gd, gd2 + * + * @var string + */ + public $image_library = 'gd2'; + + /** + * Path to the graphic library (if applicable) + * + * @var string + */ public $library_path = ''; - public $dynamic_output = FALSE; // Whether to send to browser or write to disk + + /** + * Whether to send to browser or write to disk + * + * @var bool + */ + public $dynamic_output = FALSE; + + /** + * Path to original image + * + * @var string + */ public $source_image = ''; - public $new_image = ''; - public $width = ''; - public $height = ''; - public $quality = '90'; + + /** + * Path to the modified image + * + * @var string + */ + public $new_image = ''; + + /** + * Image width + * + * @var int + */ + public $width = ''; + + /** + * Image height + * + * @var int + */ + public $height = ''; + + /** + * Quality percentage of new image + * + * @var int + */ + public $quality = 90; + + /** + * Whether to create a thumbnail + * + * @var bool + */ public $create_thumb = FALSE; + + /** + * String to add to thumbnail version of image + * + * @var string + */ public $thumb_marker = '_thumb'; - public $maintain_ratio = TRUE; // Whether to maintain aspect ratio when resizing or use hard values - public $master_dim = 'auto'; // auto, height, or width. Determines what to use as the master dimension + + /** + * Whether to maintain aspect ratio when resizing or use hard values + * + * @var bool + */ + public $maintain_ratio = TRUE; + + /** + * auto, height, or width. Determines what to use as the master dimension + * + * @var string + */ + public $master_dim = 'auto'; + + /** + * Angle at to rotate image + * + * @var string + */ public $rotation_angle = ''; - public $x_axis = ''; - public $y_axis = ''; + /** + * X Coordinate for manipulation of the current image + * + * @var int + */ + public $x_axis = ''; + + /** + * Y Coordinate for manipulation of the current image + * + * @var int + */ + public $y_axis = ''; + + // -------------------------------------------------------------------------- // Watermark Vars - public $wm_text = ''; // Watermark text if graphic is not used - public $wm_type = 'text'; // Type of watermarking. Options: text/overlay + // -------------------------------------------------------------------------- + + /** + * Watermark text if graphic is not used + * + * @var string + */ + public $wm_text = ''; + + /** + * Type of watermarking. Options: text/overlay + * + * @var string + */ + public $wm_type = 'text'; + + /** + * Default transparency for watermark + * + * @var int + */ public $wm_x_transp = 4; + + /** + * Default transparency for watermark + * + * @var int + */ public $wm_y_transp = 4; - public $wm_overlay_path = ''; // Watermark image path - public $wm_font_path = ''; // TT font - public $wm_font_size = 17; // Font size (different versions of GD will either use points or pixels) - public $wm_vrt_alignment = 'B'; // Vertical alignment: T M B - public $wm_hor_alignment = 'C'; // Horizontal alignment: L R C - public $wm_padding = 0; // Padding around text - public $wm_hor_offset = 0; // Lets you push text to the right - public $wm_vrt_offset = 0; // Lets you push text down - protected $wm_font_color = '#ffffff'; // Text color - protected $wm_shadow_color = ''; // Dropshadow color - public $wm_shadow_distance = 2; // Dropshadow distance - public $wm_opacity = 50; // Image opacity: 1 - 100 Only works with image + /** + * Watermark image path + * + * @var string + */ + public $wm_overlay_path = ''; + + /** + * TT font + * + * @var string + */ + public $wm_font_path = ''; + + /** + * Font size (different versions of GD will either use points or pixels) + * + * @var int + */ + public $wm_font_size = 17; + + /** + * Vertical alignment: T M B + * + * @var string + */ + public $wm_vrt_alignment = 'B'; + + /** + * Horizontal alignment: L R C + * + * @var string + */ + public $wm_hor_alignment = 'C'; + + /** + * Padding around text + * + * @var int + */ + public $wm_padding = 0; + + /** + * Lets you push text to the right + * + * @var int + */ + public $wm_hor_offset = 0; + + /** + * Lets you push text down + * + * @var int + */ + public $wm_vrt_offset = 0; + + /** + * Text color + * + * @var string + */ + protected $wm_font_color = '#ffffff'; + + /** + * Dropshadow color + * + * @var string + */ + protected $wm_shadow_color = ''; + + /** + * Dropshadow distance + * + * @var int + */ + public $wm_shadow_distance = 2; + + /** + * Image opacity: 1 - 100 Only works with image + * + * @var int + */ + public $wm_opacity = 50; + + // -------------------------------------------------------------------------- // Private Vars + // -------------------------------------------------------------------------- + + /** + * Source image folder + * + * @var string + */ public $source_folder = ''; + + /** + * Destination image folder + * + * @var string + */ public $dest_folder = ''; - public $mime_type = ''; - public $orig_width = ''; + + /** + * Image mime-type + * + * @var string + */ + public $mime_type = ''; + + /** + * Original image width + * + * @var int + */ + public $orig_width = ''; + + /** + * Original image height + * + * @var int + */ public $orig_height = ''; - public $image_type = ''; - public $size_str = ''; + + /** + * Image format + * + * @var string + */ + public $image_type = ''; + + /** + * Size of current image + * + * @var string + */ + public $size_str = ''; + + /** + * Full path to source image + * + * @var string + */ public $full_src_path = ''; + + /** + * Full path to destination image + * + * @var string + */ public $full_dst_path = ''; - public $create_fnc = 'imagecreatetruecolor'; - public $copy_fnc = 'imagecopyresampled'; - public $error_msg = array(); + + /** + * Name of function to create image + * + * @var string + */ + public $create_fnc = 'imagecreatetruecolor'; + + /** + * Name of function to copy image + * + * @var string + */ + public $copy_fnc = 'imagecopyresampled'; + + /** + * Error messages + * + * @var array + */ + public $error_msg = array(); + + /** + * Whether to have a drop shadow on watermark + * + * @var bool + */ protected $wm_use_drop_shadow = FALSE; + + /** + * Whether to use truetype fonts + * + * @var bool + */ public $wm_use_truetype = FALSE; + /** + * Initialize Image Library + * + * @param array $props + * @return void + */ public function __construct($props = array()) { if (count($props) > 0) @@ -116,7 +396,7 @@ class CI_Image_lib { $this->image_library = 'gd2'; $this->dynamic_output = FALSE; - $this->quality = '90'; + $this->quality = 90; $this->create_thumb = FALSE; $this->thumb_marker = '_thumb'; $this->maintain_ratio = TRUE; @@ -186,7 +466,7 @@ class CI_Image_lib { } // Is there a source image? If not, there's no reason to continue - if ($this->source_image == '') + if ($this->source_image === '') { $this->set_error('imglib_source_image_required'); return FALSE; @@ -239,7 +519,7 @@ class CI_Image_lib { * it means we are altering the original. We'll * set the destination filename and path accordingly. */ - if ($this->new_image == '') + if ($this->new_image === '') { $this->dest_image = $this->source_image; $this->dest_folder = $this->source_folder; @@ -282,7 +562,7 @@ class CI_Image_lib { * We'll also split the destination image name * so we can insert the thumbnail marker if needed. */ - if ($this->create_thumb === FALSE OR $this->thumb_marker == '') + if ($this->create_thumb === FALSE OR $this->thumb_marker === '') { $this->thumb_marker = ''; } @@ -301,7 +581,7 @@ class CI_Image_lib { * might not be in correct proportion with the source * image's width/height. We'll recalculate it here. */ - if ($this->maintain_ratio === TRUE && ($this->width != 0 OR $this->height != 0)) + if ($this->maintain_ratio === TRUE && ($this->width !== 0 OR $this->height !== 0)) { $this->image_reproportion(); } @@ -311,12 +591,12 @@ class CI_Image_lib { * If the destination width/height was not submitted we * will use the values from the actual file */ - if ($this->width == '') + if ($this->width === '') { $this->width = $this->orig_width; } - if ($this->height == '') + if ($this->height === '') { $this->height = $this->orig_height; } @@ -324,31 +604,31 @@ class CI_Image_lib { // Set the quality $this->quality = trim(str_replace('%', '', $this->quality)); - if ($this->quality == '' OR $this->quality == 0 OR ! preg_match('/^[0-9]+$/', $this->quality)) + if ($this->quality === '' OR $this->quality === 0 OR ! preg_match('/^[0-9]+$/', $this->quality)) { $this->quality = 90; } // Set the x/y coordinates - $this->x_axis = ($this->x_axis == '' OR ! preg_match('/^[0-9]+$/', $this->x_axis)) ? 0 : $this->x_axis; - $this->y_axis = ($this->y_axis == '' OR ! preg_match('/^[0-9]+$/', $this->y_axis)) ? 0 : $this->y_axis; + is_numeric($this->x_axis) OR $this->x_axis = 0; + is_numeric($this->y_axis) OR $this->y_axis = 0; // Watermark-related Stuff... - if ($this->wm_overlay_path != '') + if ($this->wm_overlay_path !== '') { $this->wm_overlay_path = str_replace('\\', '/', realpath($this->wm_overlay_path)); } - if ($this->wm_shadow_color != '') + if ($this->wm_shadow_color !== '') { $this->wm_use_drop_shadow = TRUE; } - elseif ($this->wm_use_drop_shadow == TRUE && $this->wm_shadow_color == '') + elseif ($this->wm_use_drop_shadow === TRUE && $this->wm_shadow_color === '') { $this->wm_use_drop_shadow = FALSE; } - if ($this->wm_font_path != '') + if ($this->wm_font_path !== '') { $this->wm_use_truetype = TRUE; } @@ -403,14 +683,14 @@ class CI_Image_lib { // Allowed rotation values $degs = array(90, 180, 270, 'vrt', 'hor'); - if ($this->rotation_angle == '' OR ! in_array($this->rotation_angle, $degs)) + if ($this->rotation_angle === '' OR ! in_array($this->rotation_angle, $degs)) { $this->set_error('imglib_rotation_angle_required'); return FALSE; } // Reassign the width and height - if ($this->rotation_angle == 90 OR $this->rotation_angle == 270) + if ($this->rotation_angle === 90 OR $this->rotation_angle === 270) { $this->width = $this->orig_height; $this->height = $this->orig_width; @@ -449,9 +729,9 @@ class CI_Image_lib { // If the target width/height match the source, AND if the new file name is not equal to the old file name // we'll simply make a copy of the original with the new name... assuming dynamic rendering is off. - if ($this->dynamic_output === FALSE && $this->orig_width == $this->width && $this->orig_height == $this->height) + if ($this->dynamic_output === FALSE && $this->orig_width === $this->width && $this->orig_height === $this->height) { - if ($this->source_image != $this->new_image && @copy($this->full_src_path, $this->full_dst_path)) + if ($this->source_image !== $this->new_image && @copy($this->full_src_path, $this->full_dst_path)) { @chmod($this->full_dst_path, FILE_WRITE_MODE); } @@ -460,7 +740,7 @@ class CI_Image_lib { } // Let's set up our values based on the action - if ($action == 'crop') + if ($action === 'crop') { // Reassign the source width/height if cropping $this->orig_width = $this->width; @@ -470,7 +750,7 @@ class CI_Image_lib { if ($this->gd_version() !== FALSE) { $gd_version = str_replace('0', '', $this->gd_version()); - $v2_override = ($gd_version == 2) ? TRUE : FALSE; + $v2_override = ($gd_version === 2); } } else @@ -492,7 +772,7 @@ class CI_Image_lib { * it appears that this is no longer the issue that it was in 2004, so we've removed it, retaining it in the comment * below should that ever prove inaccurate. * - * if ($this->image_library === 'gd2' && function_exists('imagecreatetruecolor') && $v2_override == FALSE) + * if ($this->image_library === 'gd2' && function_exists('imagecreatetruecolor') && $v2_override === FALSE) */ if ($this->image_library === 'gd2' && function_exists('imagecreatetruecolor')) { @@ -507,7 +787,7 @@ class CI_Image_lib { $dst_img = $create($this->width, $this->height); - if ($this->image_type == 3) // png we can actually preserve transparency + if ($this->image_type === 3) // png we can actually preserve transparency { imagealphablending($dst_img, FALSE); imagesavealpha($dst_img, TRUE); @@ -516,7 +796,7 @@ class CI_Image_lib { $copy($dst_img, $src_img, 0, 0, $this->x_axis, $this->y_axis, $this->width, $this->height, $this->orig_width, $this->orig_height); // Show the image - if ($this->dynamic_output == TRUE) + if ($this->dynamic_output === TRUE) { $this->image_display_gd($dst_img); } @@ -548,7 +828,7 @@ class CI_Image_lib { public function image_process_imagemagick($action = 'resize') { // Do we have a vaild library path? - if ($this->library_path == '') + if ($this->library_path === '') { $this->set_error('imglib_libpath_invalid'); return FALSE; @@ -562,11 +842,11 @@ class CI_Image_lib { // Execute the command $cmd = $this->library_path.' -quality '.$this->quality; - if ($action == 'crop') + if ($action === 'crop') { $cmd .= ' -crop '.$this->width.'x'.$this->height.'+'.$this->x_axis.'+'.$this->y_axis.' "'.$this->full_src_path.'" "'.$this->full_dst_path .'" 2>&1'; } - elseif ($action == 'rotate') + elseif ($action === 'rotate') { $angle = ($this->rotation_angle === 'hor' OR $this->rotation_angle === 'vrt') ? '-flop' : '-rotate '.$this->rotation_angle; @@ -606,7 +886,7 @@ class CI_Image_lib { */ public function image_process_netpbm($action = 'resize') { - if ($this->library_path == '') + if ($this->library_path === '') { $this->set_error('imglib_libpath_invalid'); return FALSE; @@ -616,36 +896,36 @@ class CI_Image_lib { switch ($this->image_type) { case 1 : - $cmd_in = 'giftopnm'; - $cmd_out = 'ppmtogif'; + $cmd_in = 'giftopnm'; + $cmd_out = 'ppmtogif'; break; case 2 : - $cmd_in = 'jpegtopnm'; - $cmd_out = 'ppmtojpeg'; + $cmd_in = 'jpegtopnm'; + $cmd_out = 'ppmtojpeg'; break; case 3 : - $cmd_in = 'pngtopnm'; - $cmd_out = 'ppmtopng'; + $cmd_in = 'pngtopnm'; + $cmd_out = 'ppmtopng'; break; } - if ($action == 'crop') + if ($action === 'crop') { $cmd_inner = 'pnmcut -left '.$this->x_axis.' -top '.$this->y_axis.' -width '.$this->width.' -height '.$this->height; } - elseif ($action == 'rotate') + elseif ($action === 'rotate') { switch ($this->rotation_angle) { - case 90 : $angle = 'r270'; + case 90: $angle = 'r270'; break; - case 180 : $angle = 'r180'; + case 180: $angle = 'r180'; break; - case 270 : $angle = 'r90'; + case 270: $angle = 'r90'; break; - case 'vrt' : $angle = 'tb'; + case 'vrt': $angle = 'tb'; break; - case 'hor' : $angle = 'lr'; + case 'hor': $angle = 'lr'; break; } @@ -704,7 +984,7 @@ class CI_Image_lib { $dst_img = imagerotate($src_img, $this->rotation_angle, $white); // Show the image - if ($this->dynamic_output == TRUE) + if ($this->dynamic_output === TRUE) { $this->image_display_gd($dst_img); } @@ -778,7 +1058,7 @@ class CI_Image_lib { } // Show the image - if ($this->dynamic_output == TRUE) + if ($this->dynamic_output === TRUE) { $this->image_display_gd($src_img); } @@ -804,7 +1084,6 @@ class CI_Image_lib { * This is a wrapper function that chooses the type * of watermarking based on the specified preference. * - * @param string * @return bool */ public function watermark() @@ -850,10 +1129,10 @@ class CI_Image_lib { $this->wm_vrt_alignment = strtoupper($this->wm_vrt_alignment[0]); $this->wm_hor_alignment = strtoupper($this->wm_hor_alignment[0]); - if ($this->wm_vrt_alignment == 'B') + if ($this->wm_vrt_alignment === 'B') $this->wm_vrt_offset = $this->wm_vrt_offset * -1; - if ($this->wm_hor_alignment == 'R') + if ($this->wm_hor_alignment === 'R') $this->wm_hor_offset = $this->wm_hor_offset * -1; // Set the base x and y axis values @@ -881,7 +1160,7 @@ class CI_Image_lib { } // Build the finalized image - if ($wm_img_type == 3 && function_exists('imagealphablending')) + if ($wm_img_type === 3 && function_exists('imagealphablending')) { @imagealphablending($src_img, TRUE); } @@ -904,7 +1183,7 @@ class CI_Image_lib { } // Output the image - if ($this->dynamic_output == TRUE) + if ($this->dynamic_output === TRUE) { $this->image_display_gd($src_img); } @@ -933,7 +1212,7 @@ class CI_Image_lib { return FALSE; } - if ($this->wm_use_truetype == TRUE && ! file_exists($this->wm_font_path)) + if ($this->wm_use_truetype === TRUE && ! file_exists($this->wm_font_path)) { $this->set_error('imglib_missing_font'); return FALSE; @@ -949,18 +1228,18 @@ class CI_Image_lib { // invert the offset. Note: The horizontal // offset flips itself automatically - if ($this->wm_vrt_alignment == 'B') + if ($this->wm_vrt_alignment === 'B') $this->wm_vrt_offset = $this->wm_vrt_offset * -1; - if ($this->wm_hor_alignment == 'R') + if ($this->wm_hor_alignment === 'R') $this->wm_hor_offset = $this->wm_hor_offset * -1; // Set font width and height // These are calculated differently depending on // whether we are using the true type font or not - if ($this->wm_use_truetype == TRUE) + if ($this->wm_use_truetype === TRUE) { - if ($this->wm_font_size == '') + if ($this->wm_font_size === '') { $this->wm_font_size = 17; } @@ -979,7 +1258,7 @@ class CI_Image_lib { $x_axis = $this->wm_hor_offset + $this->wm_padding; $y_axis = $this->wm_vrt_offset + $this->wm_padding; - if ($this->wm_use_drop_shadow == FALSE) + if ($this->wm_use_drop_shadow === FALSE) $this->wm_shadow_distance = 0; $this->wm_vrt_alignment = strtoupper(substr($this->wm_vrt_alignment, 0, 1)); @@ -1037,7 +1316,7 @@ class CI_Image_lib { } // Output the final image - if ($this->dynamic_output == TRUE) + if ($this->dynamic_output === TRUE) { $this->image_display_gd($src_img); } @@ -1060,14 +1339,15 @@ class CI_Image_lib { * based on the type of image being processed * * @param string + * @param string * @return resource */ public function image_create_gd($path = '', $image_type = '') { - if ($path == '') + if ($path === '') $path = $this->full_src_path; - if ($image_type == '') + if ($image_type === '') $image_type = $this->image_type; @@ -1122,49 +1402,49 @@ class CI_Image_lib { { switch ($this->image_type) { - case 1 : - if ( ! function_exists('imagegif')) - { - $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_gif_not_supported')); - return FALSE; - } + case 1: + if ( ! function_exists('imagegif')) + { + $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_gif_not_supported')); + return FALSE; + } - if ( ! @imagegif($resource, $this->full_dst_path)) - { - $this->set_error('imglib_save_failed'); - return FALSE; - } - break; - case 2 : - if ( ! function_exists('imagejpeg')) - { - $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_jpg_not_supported')); - return FALSE; - } + if ( ! @imagegif($resource, $this->full_dst_path)) + { + $this->set_error('imglib_save_failed'); + return FALSE; + } + break; + case 2: + if ( ! function_exists('imagejpeg')) + { + $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_jpg_not_supported')); + return FALSE; + } - if ( ! @imagejpeg($resource, $this->full_dst_path, $this->quality)) - { - $this->set_error('imglib_save_failed'); - return FALSE; - } - break; - case 3 : - if ( ! function_exists('imagepng')) - { - $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_png_not_supported')); - return FALSE; - } + if ( ! @imagejpeg($resource, $this->full_dst_path, $this->quality)) + { + $this->set_error('imglib_save_failed'); + return FALSE; + } + break; + case 3: + if ( ! function_exists('imagepng')) + { + $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_png_not_supported')); + return FALSE; + } - if ( ! @imagepng($resource, $this->full_dst_path)) - { - $this->set_error('imglib_save_failed'); - return FALSE; - } - break; - default : - $this->set_error(array('imglib_unsupported_imagecreate')); - return FALSE; - break; + if ( ! @imagepng($resource, $this->full_dst_path)) + { + $this->set_error('imglib_save_failed'); + return FALSE; + } + break; + default: + $this->set_error(array('imglib_unsupported_imagecreate')); + return FALSE; + break; } return TRUE; @@ -1187,13 +1467,13 @@ class CI_Image_lib { switch ($this->image_type) { - case 1 : imagegif($resource); + case 1 : imagegif($resource); break; - case 2 : imagejpeg($resource, '', $this->quality); + case 2 : imagejpeg($resource, '', $this->quality); break; - case 3 : imagepng($resource); + case 3 : imagepng($resource); break; - default : echo 'Unable to display the image'; + default: echo 'Unable to display the image'; break; } } @@ -1214,7 +1494,7 @@ class CI_Image_lib { */ public function image_reproportion() { - if (($this->width == 0 && $this->height == 0) OR $this->orig_width == 0 OR $this->orig_height == 0 + if (($this->width === 0 && $this->height === 0) OR $this->orig_width === 0 OR $this->orig_height === 0 OR ( ! preg_match('/^[0-9]+$/', $this->width) && ! preg_match('/^[0-9]+$/', $this->height)) OR ! preg_match('/^[0-9]+$/', $this->orig_width) OR ! preg_match('/^[0-9]+$/', $this->orig_height)) { @@ -1261,6 +1541,7 @@ class CI_Image_lib { * A helper function that gets info about the file * * @param string + * @param bool * @return mixed */ public function get_image_properties($path = '', $return = FALSE) @@ -1268,7 +1549,7 @@ class CI_Image_lib { // For now we require GD but we should // find a way to determine this using IM or NetPBM - if ($path == '') + if ($path === '') { $path = $this->full_src_path; } @@ -1283,7 +1564,7 @@ class CI_Image_lib { $types = array(1 => 'gif', 2 => 'jpeg', 3 => 'png'); $mime = (isset($types[$vals[2]])) ? 'image/'.$types[$vals[2]] : 'image/jpg'; - if ($return == TRUE) + if ($return === TRUE) { return array( 'width' => $vals[0], @@ -1333,20 +1614,22 @@ class CI_Image_lib { foreach ($allowed as $item) { - if ( ! isset($vals[$item]) OR $vals[$item] == '') + if (empty($vals[$item])) + { $vals[$item] = 0; + } } - if ($vals['width'] == 0 OR $vals['height'] == 0) + if ($vals['width'] === 0 OR $vals['height'] === 0) { return $vals; } - if ($vals['new_width'] == 0) + if ($vals['new_width'] === 0) { $vals['new_width'] = ceil($vals['width']*$vals['new_height']/$vals['height']); } - elseif ($vals['new_height'] == 0) + elseif ($vals['new_height'] === 0) { $vals['new_height'] = ceil($vals['new_width']*$vals['height']/$vals['width']); } @@ -1432,15 +1715,14 @@ class CI_Image_lib { { foreach ($msg as $val) { - - $msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val); + $msg = ($CI->lang->line($val) === FALSE) ? $val : $CI->lang->line($val); $this->error_msg[] = $msg; log_message('error', $msg); } } else { - $msg = ($CI->lang->line($msg) == FALSE) ? $msg : $CI->lang->line($msg); + $msg = ($CI->lang->line($msg) === FALSE) ? $msg : $CI->lang->line($msg); $this->error_msg[] = $msg; log_message('error', $msg); } @@ -1452,6 +1734,7 @@ class CI_Image_lib { * Show error messages * * @param string + * @param string * @return string */ public function display_errors($open = '<p>', $close = '</p>') |