HTML5+php图片自由裁剪上传功能-www.srcfans.com

<?php /** www.srcfans.com*/ function uploadImageFile() { // Note: GD library is required for this function if ($_SERVER['REQUEST_METHOD'] == 'POST') { $iWidth = $iHeight = 200; // desired image result dimensions $iJpgQuality = 90; if ($_FILES) { // if no errors and size less than 250kb if (! $_FILES['image_file']['error'] && $_FILES['image_file']['size'] < 250 * 1024) { if (is_uploaded_file($_FILES['image_file']['tmp_name'])) { // new unique filename $sTempFileName = 'cache/' . md5(time().rand()); // move uploaded file into cache folder move_uploaded_file($_FILES['image_file']['tmp_name'], $sTempFileName); // change file permission to 644 @chmod($sTempFileName, 0644); if (file_exists($sTempFileName) && filesize($sTempFileName) > 0) { $aSize = getimagesize($sTempFileName); // try to obtain image info if (!$aSize) { @unlink($sTempFileName); return; } // check for image type switch($aSize[2]) { case IMAGETYPE_JPEG: $sExt = '.jpg'; // create a new image from file $vImg = @imagecreatefromjpeg($sTempFileName); break; /*case IMAGETYPE_GIF: $sExt = '.gif'; // create a new image from file $vImg = @imagecreatefromgif($sTempFileName); break;*/ case IMAGETYPE_PNG: $sExt = '.png'; // create a new image from file $vImg = @imagecreatefrompng($sTempFileName); break; default: @unlink($sTempFileName); return; } // create a new true color image $vDstImg = @imagecreatetruecolor( $iWidth, $iHeight ); // copy and resize part of an image with resampling imagecopyresampled($vDstImg, $vImg, 0, 0, (int)$_POST['x1'], (int)$_POST['y1'], $iWidth, $iHeight, (int)$_POST['w'], (int)$_POST['h']); // define a result image filename $sResultFileName = $sTempFileName . $sExt; // output image to file imagejpeg($vDstImg, $sResultFileName, $iJpgQuality); @unlink($sTempFileName); return $sResultFileName; } } } } } } $sImage = uploadImageFile(); echo '<img src="'.$sImage.'" />';