头像上传裁剪整合php

<?php // var_dump($_FILES);exit(); if(isset($_POST['avatar_data'])){ $avatar_data=$_POST['avatar_data']; $pos=json_decode($avatar_data); $x=$pos->x; $y=$pos->y; $height=$pos->height; $width=$pos->width; $rotate=$pos->rotate; $allowedExts = array("jpg", "png"); $temp = explode(".", $_FILES["avatar_file"]["name"]); $extension = end($temp); // 获取文件后缀名 if ((($_FILES["avatar_file"]["type"] == "image/jpg") || ($_FILES["avatar_file"]["type"] == "image/jpeg") || ($_FILES["avatar_file"]["type"] == "image/png")) && ($_FILES["avatar_file"]["size"] < 204800) // 小于 200 kb && in_array($extension, $allowedExts)) { if ($_FILES["avatar_file"]["error"] > 0) { //echo "错误：: " . $_FILES["avatar_file"]["error"] . "<br>"; $data['message']="错误：: " . $_FILES["avatar_file"]["error"]; echo json_encode($data); } else { // 判断当期目录下的 upload 目录是否存在该文件 // 如果没有 upload 目录，你需要创建它，upload 目录权限为 777 if (file_exists("uploads/" . $_FILES["avatar_file"]["name"])) { // echo $_FILES["avatar_file"]["name"] . " 文件已经存在。 "; $data['message']='头像已存在'; echo json_encode($data); } else { // 根据坐标裁剪 $targ_w = $targ_h = 200; // 如果 upload 目录不存在该文件则将文件上传到 upload 目录下 $orpicname="uploads/" .mt_rand(10000,99999).$_FILES["avatar_file"]["name"]; move_uploaded_file($_FILES["avatar_file"]["tmp_name"],$orpicname); //echo "文件存储在: " . "upload/" . $_FILES["avatar_file"]["name"]; //$src="uploads/" . $_FILES["avatar_file"]["name"]; $pathinfo = pathinfo($orpicname); $filename = 'uploads/small_'.mt_rand(10000,99999).$pathinfo['basename']; if($extension=='jpg'){ $img_r = imagecreatefromjpeg($orpicname); //从url新建一图像 $dst_r = imagecreatetruecolor($targ_w, $targ_h); //创建一个真色彩的图片源 imagecopyresampled($dst_r, $img_r, 0, 0, $x, $y, $targ_w, $targ_h, $width, $height); imagejpeg($dst_r, $filename, 90); }else{ // png $img_r = imagecreatefrompng($orpicname); //从url新建一图像 $dst_r = imagecreatetruecolor($targ_w, $targ_h); //创建一个真色彩的图片源 imagecopyresampled($dst_r, $img_r, 0, 0, $x, $y, $targ_w, $targ_h, $width, $height); imagepng($dst_r, $filename, 9); } $data['message']='头像上传成功'; echo json_encode($data); } } } else { //echo "非法的文件格式"; $data['message']='请上传png或者jpg格式'; echo json_encode($data); } }else{ $data['message']='请选择头像上传'; echo json_encode($data); exit(); } ?>