在LAMP環(huán)境中,測(cè)試一個(gè)簡(jiǎn)單的php文件上傳功能時(shí),發(fā)現(xiàn)/var/log/apache2/error.log中出現(xiàn)如下php警告:
1. [Tue Jan 31 09:40:27 2012] [error] [client 127.0.0.1] PHP Warning: move_uploaded_file(/home/leotody/32883679.jpeg): failed to open stream: Permission denied in /var/www/upload_file.php on line 25, referer: http://localhost/info.html
2. [Tue Jan 31 09:40:27 2012] [error] [client 127.0.0.1] PHP Warning: move_uploaded_file(): Unable to move '/tmp/phps05ssU' to '/home/leotody/32883679.jpeg' in /var/www/upload_file.php on line 25, referer: http://localhost/info.html
提示沒(méi)有訪問(wèn)權(quán)限,文件上傳的代碼如下:
if (file_exists("upload/" . $_FILES["file"]["name"])) { echo $_FILES["file"]["name"] . " already exists. "; } else { if(move_uploaded_file($_FILES["file"]["tmp_name"], "upload/".$_FILES["file"]["name"])) { echo "Stored in: " . "upload/" . $_FILES["file"]["name"]; } else { echo "move error!"; } } |
頁(yè)面中顯示"move error!",說(shuō)明move_uploaded_file()函數(shù)執(zhí)行失敗。
通過(guò)查找資料,發(fā)現(xiàn)網(wǎng)上有說(shuō)是selinux啟動(dòng)的原因,檢查系統(tǒng)并未啟動(dòng)selinux,查看upload目錄默認(rèn)權(quán)限ls -ld upload,結(jié)果為755:
1. drwxr-xr-x 2 root root 4096 2012-01-31 10:59 upload
將upload目錄權(quán)限改為777,sudo chmod 777 upload,再測(cè)試上傳功能成功。但這種修改權(quán)限的方法并不安全。
故可以改upload目錄的擁有者為www-data(即apache),sudo chown -R www-data:www-data upload,然后再測(cè)試上傳功能成功。
1. drwxr-xr-x 2 www-data www-data 4096 2012-01-31 10:59 upload
以上這篇linux文件上傳,給文件或目錄添加apache權(quán)限的方法就是小編分享給大家的全部?jī)?nèi)容了,希望能給大家一個(gè)參考,也希望大家多多支持錯(cuò)新站長(zhǎng)站。
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