本文執行個體講述了PHP安全上傳圖片的方法。分享給大家供大家參考。具體分析如下：
這段代碼用於上傳圖片，可以根據圖片類型檢測圖片是否安全，不是簡單的檢測副檔名
<?php // upload.phpecho <<<_END<html><head><title>PHP Form Upload</title></head><body><form method='post' action='upload2.php' enctype='multipart/form-data'>Select a JPG, GIF, PNG or TIF File:<input type='file' name='filename' size='10' /><input type='submit' value='Upload' /></form>_END;if ($_FILES){$name = $_FILES['filename']['name'];switch($_FILES['filename']['type']){case 'image/jpeg': $ext = 'jpg'; break;case 'image/gif': $ext = 'gif'; break;case 'image/png': $ext = 'png'; break;case 'image/tiff': $ext = 'tif'; break;default: $ext = ''; break;}if ($ext){$n = "image.$ext";move_uploaded_file($_FILES['filename']['tmp_name'], $n);echo "Uploaded image '$name' as '$n':<br />";echo "<img src='$n' />";}else echo "'$name' is not an accepted image file";}else echo "No image has been uploaded";echo "</body></html>";?>
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