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  1. Browse and print DOM Tree in PHP (debugging)
    1 month ago
    1. function walkDom($node, $level = 0) {
    2.         $indent = '';
    3.         for ($i = 0; $i < $level; $i++)
    4.         $indent .= '&nbsp;&nbsp;&nbsp;&nbsp;'; //prettifying the output
    5.         if (true /*$node->nodeType == XML_TEXT_NODE*/) {
    6.                 echo $indent.'<b>'.$node->nodeName.'</b> - |'.$node->nodeValue.'|';
    7.  
    8.                 if ( $node->nodeType == XML_ELEMENT_NODE ) {
    9.                         $attributes = $node->attributes; // get all the attributes(eg: id, class)
    10.                         foreach($attributes as $attribute) {
    11.                                 echo ', '.$attribute->name.'='.$attribute->value;
    12.                         }                                                    
    13.                 }
    14.  
    15.                 echo '<br />';
    16.         }
    17.  
    18.         $cNodes = $node->childNodes;
    19.         if (count($cNodes) > 0) {
    20.                 $level++ ; // go one level deeper
    21.                 foreach($cNodes as $cNode)
    22.                         walkDom($cNode, $level);
    23.                 $level = $level - 1;
    24.         }
    25. }
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  2. MySQL permissions for backup
    2 months ago
    Create a specific user for backups purpose with read-only permissions
    1. GRANT SHOW DATABASES, SELECT, LOCK TABLES, RELOAD ON *.* to backup@localhost IDENTIFIED BY 'password';
    2. FLUSH PRIVILEGES;
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  3. Restorer plus rapidement un dump MySQL (multi core) 
    4 months ago
    Il faut avoir un backup de base tel qu'il y ait un dossier par base de donnée, un fichier SQL compressé par table. "-P 4" désigne le nombre de core.
    1. find -print0 | xargs -0 -n 1 -P 4 -I {} sh -c "zcat '{}' | mysql mydatabase"
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  4. Sponsorised links
    sponsorised links
  5. Update svn repository location to a different URL
    5 months ago 
    svn switch --relocate svn://svnserver1 svn://svnserver2
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  6. Nginx authentication (auth_basic)
    5 months ago
    1. # htpasswd file is relative to nginx conf
    2. location  /  {
    3.   auth_basic            "Restricted";
    4.   auth_basic_user_file  conf/htpasswd;
    5. }
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  7. non-interactive mysql install on Debian / Ubuntu
    5 months ago
    Scripted install of MySQL
    1. echo mysql-server mysql-server/root_password select PASSWORD | debconf-set-selections
    2. echo mysql-server mysql-server/root_password_again select PASSWORD | debconf-set-selections
    3.  
    4. aptitude -y install mysql-server libmysqlclient15-dev
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  8. Find what process is accessing a particular file
    5 months ago
    shell,fuser,process,resource,bash,file
    1. fuser -v /var/cache/debconf/config.dat
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  9. Preventing Cron Job Collision
    7 months ago
    Prevents jobs to collide if they take longer to run than the frequency itself
    1. $fp = fopen('/tmp/lock.txt', 'r+'); 
    2.  
    3. if(!flock($fp, LOCK_EX | LOCK_NB)) { 
    4.    echo 'Unable to obtain lock'; 
    5.    exit(-1); 
    6. } 
    7.    
    8. /* ... */ 
    9.  
    10. fclose($fp);
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  10. Blocking Web Access to Cron Jobs
    7 months ago
    it's also possibl with a .htaccess file and "deny from all " in that file
    1. if (isset($_SERVER['REMOTE_ADDR'])) die('Permission denied.');
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  11. CSS hacks for IE6, IE7
    7 months ago
    1. #someElement { 
    2.   background: red; /* modern browsers */ 
    3.   *background: green; /* IE 7 and below */ 
    4.   _background: yellow; /* IE6 exclusively */ 
    5. }
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