Php and Other proportional scaling images and Cutting Image Code sharing,

Php and Other proportional scaling images and Cutting Image Code sharing,

Php and Other proportional scaling image and cut Image Code sharing

/*** Image scaling function (fixed height, fixed width or maximum width and height can be set. gif, jpg, and png formats are supported.) * Author: specs ** @ param string $ source_path source image * @ param int $ target_width target width * @ param int $ target_height target height * @ param string $ fixed_orig lock width/height (optional parameter width, height or null value) * @ return string */function myImageResize ($ source_path, $ target_width = 200, $ target_height = 200, $ fixed_orig = '') {$ source_info = getimagesize ($ source_path ); $ source_width = $ source_info [0]; $ source_height = $ source_info [1]; $ source_mime = $ source_info ['mime ']; $ ratio_orig = $ source_width/$ source_height; if ($ fixed_orig = 'width') {// fixed width $ target_height = $ target_width/$ ratio_orig;} elseif ($ fixed_orig = 'height ') {// fixed height $ target_width = $ target_height * $ ratio_orig;} else {// maximum width or maximum height if ($ target_width/$ target_height> $ ratio_orig) {$ target_width = $ target_height * $ ratio_orig;} else {$ target_height = $ target_width/$ ratio_orig;} switch ($ source_mime) {case 'image/gif ': $ source_image = imagecreatefromgif ($ source_path); break; case 'image/jpeg ': $ source_image = imagecreatefromjpeg ($ source_path); break; case 'image/png ': $ source_image = hour ($ source_path); break; default: return false; break;} $ target_image = hour ($ target_width, $ target_height); imagecopyresampled ($ target_image, $ source_image, 0, 0, 0, 0, $ target_width, $ target_height, $ source_width, $ source_height); // header ('content-type: image/jpeg '); $ imgArr = explode ('. ', $ source_path); $ target_path = $ imgArr [0]. '_ new. '. $ imgArr [1]; imagejpeg ($ target_image, $ target_path, 100 );}

Usage:

1. MyImageResize ($ filename, 200,200); // maximum width and height
2. MyImageResize ($ filename, 200,200, 'width'); // fixed width
3. MyImageResize ($ filename, 200,200, 'height'); // fixed height
   

Cut the image to a fixed size:

Function imagecropper ($ source_path, $ target_width, $ target_height) {$ source_info = histogram ($ source_path); $ source_width = $ source_info [0]; $ source_height = $ source_info [1]; $ source_mime = $ source_info ['mime ']; $ source_ratio = $ source_height/$ source_width; $ target_ratio = $ target_height/$ target_width; // if ($ source_ratio> $ target_ratio) {$ cropped_width = $ source_width; $ cropped_height = $ source_width * $ target_ratio; $ source_x = 0; $ source_y = ($ source_height-$ cropped_height)/2;} elseif ($ source_ratio <$ target_ratio) {// The Source image is too wide $ cropped_width = $ source_height/$ target_ratio; $ cropped_height = $ source_height; $ source_x = ($ source_width-$ cropped_width)/2; $ source_y = 0;} else {// moderate source image $ cropped_width = $ source_width; $ cropped_height = $ source_height; $ source_x = 0; $ source_y = 0;} switch ($ source_mime) {case 'image/gif': $ source_image = imagecreatefromgif ($ source_path ); break; case 'image/jpeg ': $ source_image = imagecreatefromjpeg ($ source_path); break; case 'image/png': $ source_image = imagecreatefrompng ($ source_path); break; default: return false; break;} $ target_image = imagecreatetruecolor ($ target_width, $ target_height); $ cropped_image = crop ($ cropped_width, $ cropped_height); // crop imagecopy ($ cropped_image, $ source_image, 0, 0, $ source_x, $ source_y, $ cropped_width, $ cropped_height); // scale imagecopyresampled ($ target_image, $ cropped_image, 0, 0, 0, 0, 0, $ target_width, $ target_height, $ cropped_width, $ cropped_height); $ dotpos = strrpos ($ source_path ,'. '); $ imgName = substr ($ source_path, 0, $ dotpos); $ suffix = substr ($ source_path, $ dotpos); $ imgNew = $ imgName. '_ small '. $ suffix; imagejpeg ($ target_image, $ imgNew, 100); imagedestroy ($ source_image); imagedestroy ($ target_image); imagedestroy ($ cropped_image );}

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