2017-09-13 147 views
0

我嘗試運行一個cron job對我的數據庫執行備份。Cron作業不運行php代碼

執行cron job的問題,我收到一封電子郵件,表明cron作業正在執行,但問題是我沒有備份文件。 但是,如果我在瀏覽器上運行的頁面沒有cron job我有一個備份文件。 另外我有一個按鈕,如果我點擊這個按鈕,我收到一個備份文件。 這意味着我的代碼工作。

cron作業文件:

<?php 
include("includes/connect.php"); 
include("includes/functions.php"); 
include("includes/backup.php"); 
?> 

備份功能,這功能在functions.php的

<?php 
function Export_Database($host,$user,$pass,$name,$tables=false,$backup_name=false) 
    { 
     $mysqli = new mysqli($host,$user,$pass,$name); 
     $mysqli->select_db($name); 
     $mysqli->query("SET NAMES 'utf8'"); 

     $queryTables = $mysqli->query('SHOW TABLES'); 
     while($row = $queryTables->fetch_row()) 
     { 
      $target_tables[] = $row[0]; 
     } 
     if($tables !== false) 
     { 
      $target_tables = array_intersect($target_tables, $tables); 
     } 
     foreach($target_tables as $table) 
     { 
      $result   = $mysqli->query('SELECT * FROM '.$table); 
      $fields_amount = $result->field_count; 
      $rows_num=$mysqli->affected_rows;  
      $res   = $mysqli->query('SHOW CREATE TABLE '.$table); 
      $TableMLine  = $res->fetch_row(); 
      $content  = (!isset($content) ? '' : $content) . "\n\n".$TableMLine[1].";\n\n"; 

      for ($i = 0, $st_counter = 0; $i < $fields_amount; $i++, $st_counter=0) 
      { 
       while($row = $result->fetch_row()) 
       { //when started (and every after 100 command cycle): 
        if ($st_counter%100 == 0 || $st_counter == 0) 
        { 
          $content .= "\nINSERT INTO ".$table." VALUES"; 
        } 
        $content .= "\n("; 
        for($j=0; $j<$fields_amount; $j++) 
        { 
         $row[$j] = str_replace("\n","\\n", addslashes($row[$j])); 
         if (isset($row[$j])) 
         { 
          $content .= '"'.$row[$j].'"' ; 
         } 
         else 
         { 
          $content .= '""'; 
         }  
         if ($j<($fields_amount-1)) 
         { 
           $content.= ','; 
         }  
        } 
        $content .=")"; 
        //every after 100 command cycle [or at last line] ....p.s. but should be inserted 1 cycle eariler 
        if ((($st_counter+1)%100==0 && $st_counter!=0) || $st_counter+1==$rows_num) 
        { 
         $content .= ";"; 
        } 
        else 
        { 
         $content .= ","; 
        } 
        $st_counter=$st_counter+1; 
       } 
      } $content .="\n\n\n"; 
     } 

    $fp = fopen($_SERVER['DOCUMENT_ROOT']."/backup"."/mybackup-".date('d-m-Y')."-".date('H:i:s').".sql","wb"); 
fwrite($fp,$content); 
fclose($fp); 
exit(); 
    }?> 

備份頁:

<?php 
    $mysqlUserName  = "***"; 
    $mysqlPassword  = ""; 
    $mysqlHostName  = "****"; 
    $DbName    = "****"; 
    $backup_name  = "mybackup.sql"; 

    $tables = array(); 
$showTable = "SHOW TABLES from $DbName"; 
$getData = mysqli_query($conn, $showTable); 
while ($row = mysqli_fetch_row($getData)) { 
    $tables[] = $row; 
} 
    Export_Database($mysqlHostName,$mysqlUserName,$mysqlPassword,$DbName, $tables=false, $backup_name=false); 
?> 

我怎樣才能解決這個問題跑cron作業執行時的代碼?? !!

+0

查看cron的日誌文件/ var /日誌/ cron的 –

回答

3

爲什麼不使用mysqldump

,因爲它說的文件上:
4.5.4的mysqldump - 數據庫備份程序

[cron-times] mysqldump -u <dbuser> --password <pw> [--host <host] --all-databases > /opt/mysql.bkp/`date` 
+0

B I在cron作業中使用此我的備份文件保存在備份文件夾中我有一個godaddy上的主機 –

+0

您可以將輸出傳輸到選擇的文件。只需執行'>/my/path/to/file' 您還可以使用cron-shell的shell函數來獲取當前日期。 請仔細閱讀如何更改cron shell: https://unix.stackexchange.com/questions/94456/how-to-change-cron-shell-sh-to-bash#94459 –

+0

B我做了這個usr/bin/mysqldump -u dbusername -p'dbpass'dbname> /backup/mybackup.sql備份是文件夾名稱mybackup.sql是文件名如何爲這個名稱放一個日期時間?? !! –