Un souci de finalisation avec explode PHP MySql

foreach  ($result[1] as $row) {
	$Describer_initials = !empty($row["Describer_initials"]) ? $row["Describer_initials"] : NULL;
	if($Describer_initials){
		$explode1 = explode("|", $Describer_initials);
		if(!empty($explode1)){
			foreach($explode1 as $D){
				echo '<tr><td>' . $D . '</td><td>' . $row ["counter"] . '</td></tr>';	
			}
		}
	}
}

echo '<blockquote><h3><a id="DESCRIBERS"></a>Statistics by name of describers :</h3></blockquote>';
	
	echo '<table class="sortablenarrow" id="you"><tr><th>NAME OF DESCRIBERS</th><th>COUNTER ALL TAXA</th></tr>';
	
	$requete = $connexion->prepare("SELECT Describer_initials, COUNT(Describer_initials) AS counter FROM taxabase3 WHERE Describer_initials is not null and trim(Describer_initials) != '' GROUP BY Describer_initials ORDER BY COUNT(Describer_initials) DESC, Describer_initials ASC");
	
	$requete->execute();
    $result[1] = $requete->fetchAll();
	$explode1 = '';
	foreach  ($result[1] as $row) {
	
	$Describer_initials = !empty($row["Describer_initials"]) ? $row["Describer_initials"] : NULL;
	if($Describer_initials){
		$explode1 = explode("|", $Describer_initials);
		if(!empty($explode1)){
			foreach($explode1 as $D){
				echo '<tr><td>' . $D . '</td><td>' . $row ["counter"] . '</td></tr>';	
			}
		}
	}		
}
	echo '</table>';
	echo '<p> </p>';
	echo '<p> </p>';

$requete->execute();
    $result[1] = $requete->fetchAll();
	$plan21 = '';
	$tabdescriber_counter = array();
		
    	foreach  ($result[1] as $row) 
	{
		{
		$plan21 = explode("|", $row["Describer_initials"]);
		foreach ($plan21 as $cellplan21)
		{
			$cellplan21[$counter][] = 
				array($row[$cellplan21],
                                       $row[$counter]);
		}	
	}
	ksort($tabdescriber_counter);
	foreach($tabdescriber_counter 
                as $describer => $tabcounter)
	{
		foreach($tabcounter as $Original_array)
		{
			echo '<tr><td><b>' . $describer .
                            '</b></td><td><i>'. $Original_array[0] . '</i></td></tr>';
		}
	}

$requete = $connexion->prepare("SELECT Describer_initials FROM taxabase3 WHERE Describer_initials is not null and trim(Describer_initials) != ''");
	
	//$Describer_initials = !empty($row["Describer_initials"]) ? $row["Describer_initials"] : NULL;
	//$cellplan21 = 'Describer_initials';
	//$tabcellplan21 = '';
	$tabcellplan21 = array();
	foreach  ($result[1] as $row) 
	{
	foreach (explode("|", $row["Describer_initials"]) as $cellplan21)
	//var_dump($Describer_initials); die();
	//var_dump($cellplan21); die();
	{
	$tabcellplan21[] = $cellplan21;
	} 
	}
	$compteurs=array_count_values($tabcellplan21);
	foreach ($compteurs as $describer=>$count) {
    echo '<tr><td><b>' . $describer .
                            '</b></td><td><i>'. $count . '</i></td></tr>';
	}