PHP simple upload of multiple image formats _ PHP Tutorial

PHP supports simple upload of multiple image formats. You can simply write a PHP image upload file that supports jpg, png, gif, and other formats. if you want to support more formats, such as bmp, you can expand it by yourself. It is not object-oriented. you can simply write a PHP image to upload images that support jpg, png, gif, and other formats. if you want to support more formats, such as bmp, you can expand it by yourself. It is not object-oriented. here we will record it for future use.

You can upload two images at a time. after the image is uploaded, the source image and the graph with poor quality are generated. the source image is used to save the picture with high quality, and the graph with poor quality is used for webpage display.

PHP Code

 Select_db ($ database); $ work_group = check_input ($ _ POST ['work _ group']); $ name = check_input ($ _ POST ['name']); $ tel = check_input ($ _ POST ['tel']); $ id_card = check_input ($ _ POST ['id _ card']); $ work_name = check_input ($ _ POST ['work _ name']); $ place = check_input ($ _ POST ['place']); $ work1 = check_input ($ _ POST ['work1']); date_default_timezone_set ('prc'); $ date = date ("Y-m-d H: I: s "); $ quality = 100; $ quality2 = 70; $ qualit Y_png = 9; $ quality2_png = 7; if (isset ($ _ FILES ['work1']) & $ _ FILES ['work1'] ['error'] = 0) {$ size = getimagesize ($ _ FILES ['work1'] ['tmp _ name']); $ original = $ _ FILES ['work1'] ['tmp _ name']; $ type = $ _ FILES ['work1'] ['type']; // echo $ type; $ target_name = date ('ymdhis '). '_'. preg_replace (''[^ a-z0-9-_.] 'I', '', $ _ FILES ['work1'] ['name']); $ work1 = $ target_name; $ target = dirname (_ FILE __). '/uploads /'. $ target_name; switc H ($ type) {case "image/jpeg": $ resultImage = imagecreatefromjpeg ($ original); imagejpeg ($ resultImage, $ target, $ quality); break; case "image/png": $ resultImage = imagecreatefrompng ($ original); imagepng ($ resultImage, $ target, $ quality_png); break; case "image/gif ": $ resultImage = imagecreatefromgif ($ original); imagegif ($ resultImage, $ target, $ quality); break; default: die ("This file type is not supported"); exit ;} $ workdesksmall = $ targe T_name; $ target = dirname (_ FILE __). '/uploads/small /'. $ target_name; switch ($ type) {case "image/jpeg": $ resultImage = imagecreatefromjpeg ($ original); imagejpeg ($ resultImage, $ target, $ quality2); break; case "image/png": $ resultImage = imagecreatefrompng ($ original); imagepng ($ resultImage, $ target, $ quality2_png); break; case "image/gif ": $ resultImage = imagecreatefromgif ($ original); imagegif ($ resultImage, $ targ Et, $ quality2); break; default: die ("This file type is not supported"); exit ;}} if (isset ($ _ FILES ['work2']) & $ _ FILES ['work2'] ['error'] = 0) {$ size = getimagesize ($ _ FILES ['work2'] ['tmp _ name']); $ original = $ _ FILES ['work2'] ['tmp _ name']; $ type = $ _ FILES ['work2'] ['type']; $ target_name = date ('ymdhis '). '_'. preg_replace (''[^ a-z0-9-_.] 'I', '', $ _ FILES ['work2'] ['name']); $ work2 = $ target_name; $ target = dirname (_ FILE __). '/uploads /'. $ targ Et_name; switch ($ type) {case "image/jpeg": $ resultImage = imagecreatefromjpeg ($ original); imagejpeg ($ resultImage, $ target, $ quality); break; case "image/png": $ resultImage = imagecreatefrompng ($ original); imagepng ($ resultImage, $ target, $ quality_png); break; case "image/gif ": $ resultImage = imagecreatefromgif ($ original); imagegif ($ resultImage, $ target, $ quality); break; default: die ("This file type is not supported"); exit ;} $ work2_s Mall = $ target_name; $ target = dirname (_ FILE __). '/uploads/small /'. $ target_name; switch ($ type) {case "image/jpeg": $ resultImage = imagecreatefromjpeg ($ original); imagejpeg ($ resultImage, $ target, $ quality2); break; case "image/png": $ resultImage = imagecreatefrompng ($ original); imagepng ($ resultImage, $ target, $ quality2_png); break; case "image/gif ": $ resultImage = imagecreatefromgif ($ original); imagegif ($ resul TImage, $ target, $ quality2); break; default: die ("This file type is not supported"); exit ;}$ SQL = "insert into photo (work_group, name, tel, id_card, work_name, place, work, work_small, date) values ('$ work_group', '$ name',' $ tel ',' $ id_card ', '$ work_name', '$ place', '$ work1',' $ workdesksmall', '$ date') "; // echo $ SQL; $ result = $ connector-> query ($ SQL) or die (mysql_error (); if ($ work2! = "" & $ Work2_small! = Null) {$ sql2 = "insert into photo (work_group, name, tel, id_card, work_name, place, work, work_small, date) values ('$ work_group ', '$ name',' $ Tel', '$ id_card', '$ work_name', '$ place', '$ work2', '$ work2_small', '$ date ') "; $ result2 = $ connector-> query ($ sql2) or die (mysql_error ();} $ connector-> close ($ connector); $ page = ".. /upload. php "; echo" script alert ('upload successful! '); Window. location = "". $ page. ""; script ";?>

Some problems need to be explained as follows:

The quality of the image generated by JPEG images ranges from 0 (minimum quality, minimum file size) to 100 (maximum quality, maximum file size ). However, if the quality range of the image generated by ImagePNG is from 0 to 9, the function does not work if the parameter is not passed in.

Determine the type of the uploaded file, $ type = $ _ FILES ['work1'] ['type'];.

You can use these functions to create images of various formats: imagecreatefromjpeg (), imagecreatefrompng (), and imagecreatefromgif ().

Bytes. Not object-oriented ,...