Mese: Dicembre 2020

Pubblicato il

php list and link folder’s files

an old way

There is an old way, the following:

<?php
     $path = "./";
     $narray=array();
     $dir_handle = @opendir($path) or die("Unable to open $path");
     echo "";
     $i=0;
     while($file = readdir($dir_handle))
     {
     if($file != '.' && $file != '..' && $file != 'index.php' && $file != 'normal.inc')
     {
     //echo "<a href='$path/$file'>$file</a><br/>";
     $narray[$i]=$file;
     $i++;
     }
     }
     sort($narray);

	   echo "<ul>";	            
     for($i=0; $i<sizeof($narray); $i++)
	   {
	    $filename = str_replace(".html", "", $narray[$i]) & str_replace(".php", "", $narray[$i]);
	   echo "<li><a href='$path$narray[$i]'>$filename</a></li>";
	   }
	   
	   echo "</ul>";
	   //closing the directory
	   closedir($dir_handle);
?>

a new way: glob

<?php
	   echo "<ul>";	  
$phpfiles = glob("[^index]*.php");
foreach ($phpfiles as $phpfile){
     echo '<li><a href="'.$phpfile.'">'.pathinfo($phpfile, PATHINFO_FILENAME).'</a></li>'; 
}	   
	   echo "</ul>";
?>

as you can see, the code is much simpler.

  • With this code: glob(“[^index]*.php”) we have set to list all php files except index.php.
  • with this other: ‘.pathinfo($phpfile, PATHINFO_FILENAME).’ we have set to show only filenames without extension

of course we could set a subfolder as well, with a code like the following:

$phpfiles = glob("[subfolder-name]/[^index]*.php");

Pubblicato il

php/msql keywords as hashtags

php separate all items in a mysql field

You can use the explode syntax, as in the following exapmple:

$keywords = $row['keywords'];
foreach (explode(',', $keywords) as $key) {
    echo "<span><a href="\hashtag.php?tag=$key\">{$key}</a></span>";
}

In the example we have a mysql field (keywords) with many items comma separated (such as : “truth, soul, body, mind” and so on).

And we obtain to have as many links from each item toward a specific target, as they are (that is: 3 links if you have 3 items, 7 links fi you have 7 ones).

In this way you can get a system of hashtags for your database keywords.

other steps

You need another file, let we call them hashtag.php.

The content of hashtag.php could be something like:

<?php  
 //hashtag.php  
 if(isset($_GET["tag"]))  
 {  
      $tag = preg_replace('/(?<!\S)#([0-9a-zA-Z]+)/', '', $_GET["tag"]);

//to beautify and stylize, but not necessary BEGIN
      $title=$tag;
      include "$root/intell/header-intell.inc";      
//to beautify and stylize, but not necessary END      

      $connect = mysqli_connect("localhost", "[mysql user]", "[mysql password]", "[mysql database]");  
      
      mysqli_set_charset($connect, 'utf8mb4');  // procedural style
      
      $query = "SELECT * FROM [your table] WHERE [your fields with tags] LIKE '%".$tag."%';  
      $result = mysqli_query($connect, $query);  
      if(mysqli_num_rows($result) > 0)  
      {  
           while($row = mysqli_fetch_array($result))  
           {  
                echo "<h2>$row[title]</h2>
                <blockquote><p>$row[text]</p></blockquote>
                <p><i>$row[author]</i><br />";
                $keywords = $row['keywords'];
                foreach (explode(',', $keywords) as $key) {
                if(trim($row["keywords"])==''){echo "";} else{echo "<span><a href=\"hashtag.php?tag=$key\">{$key}</a></span>";}
                }
                echo "</p>";
           }  
      }  
      else  
      {  
           echo '<p>No Data Found</p>';  
      }  
 }  
 ?>

Afterwards obviously you could adjust the css according to your needs.

Of course you can have as many other php files as you want, where you usually store you database content, in which you can add the kewwords as hashtags, with a code like the following:

echo "</p><p class=\"keywords\">";
$keywords = $row['keywords'];
foreach (explode(',', $keywords) as $key) {
    if(trim($row["keywords"])==''){echo "";} else{echo "<span><a href=\"hashtag.php?tag=$key\">{$key}</a></span>";}
}
echo "</p>";}

Pubblicato il

LibreBase problems with native mysql connector

1. mysql connector not working

From LO 6.4 native mysql connector didn’t work any more. But a possible solution is to comment the line skip-networking in my.conf.

I mean now the line is #skip-networking, before it was skip-networking.

2. subforms not working

In new releases, to avoid this issue, you have to cut a small portion of code in content.xml, as in the following instructions:

have a look at the content.xml in the *.odb-file (could be opened by a zip-program)

Not working code:
<db:driver-settings db:system-driver-settings=”” db:base-dn=”” db:parameter-name-substitution=”false”/>

Working code
<db:driver-settings db:system-driver-settings=”” db:base-dn=””/> ยป

It works!

3. tables or queries not working

You should check the table/query structure and avoid fields (which should have a length) with no length.

Pubblicato il

windows issues

In KDE Linux it could happen some issues with windows:

  1. rules not memorized: to fix it check if configurations files (tipically in ./config/ kwinrc and kwinrulesrc) have the right permissions (avoid: non access).
  2. new window below others already active: such as Clementine’s window, called from system tray, going below other windows; to fix this you have to set Focus stealing prevention in Window Behavior (the first tab of Window management in System settings) to none, as you can see in the image

    la regola da impostare.

Pubblicato il

KDE no longer working

If your smartphone doesn’t connect any more with the PC, the problem could be <b>the firewall</b>.

To fix this, you can:

1.install gufw

2.Open gufw from app launcher
Go to the Rules tab
Click the [+] button to add a new rule
Select the direction “Both”
Select category “Network:
Select Application “KDE connect”
Click “Add”

Done!