Whaouh! J'ai rien compris! "explode" "trim"

if(isset($fields_searchable))
	{
		foreach($fields_searchable as $fsearch)
		{
			switch($fsearch->type)
			{
				case 'multicheckbox':
				case 'multiselect':
					$value = mosGetParam( $_GET, $fsearch->name, array() );
					for($i = 0,$nb=count($value);$i < $nb;$i++)
					{
						$url_param .= "&".$fsearch->name."=".$value[$i];
						if ($i == 0)
							$search .= " AND (";	
						$search .= "a.$fsearch->name = ',$value[$i],'";
						if ($i < $nb - 1)
							$search .= " OR ";
						else
							$search .= " )";	
					}
					break;
				case 'checkbox':
				case 'radio':
				case 'select':	
					$value = mosGetParam( $_GET, $fsearch->name, "" );
					if ($value != "")
					{
						$search .= " AND a.$fsearch->name = '$value'";
						$url_param .= "&".$fsearch->name."=".$value;
					}
					break;
					
				case 'price':
					$value = mosGetParam( $_GET, $fsearch->name, "" );
					if ($value != "")
					{
						$pos = strpos($value, '-');
						$fieldsql = "a.$fsearch->name + 0"; // Little hack to convert in number
						if ($pos !== false)
						{
							if ($pos == 1)
							{
								$search .= " AND $fieldsql < '".substr($value,1)."'";
							}
							else if ($pos == strlen($value) - 1)
							{
								$search .= " AND $fieldsql > '".substr($value,0,strlen($value)-1)."'";
							}
							else
							{
								$search .= " AND ($fieldsql >= '".substr($value,0,$pos)."' AND $fieldsql <= '".substr($value,$pos+1)."')";
							}
						}
						$url_param .= "&".$fsearch->name."=".$value;
					}
					break;
		
				case 'textarea':
				case 'number':
				case 'emailaddress':
				case 'url':
				case 'text':
					$value = mosGetParam( $_GET, $fsearch->name, "" );
					if ($value != "")
					{
						$search .= " AND a.$fsearch->name LIKE '%$value%'";
						$url_param .= "&".$fsearch->name."=".$value;
					}
					break;
			}
		}
	}
	
		
	if ($text_search <> "") {
		$search .= " AND (a.ad_headline LIKE '%$text_search%' OR a.ad_text LIKE '%$text_search%') AND a.published = 1";
	}
	else
		$search .= " AND a.published = 1";
		
	$url .= $url_param;
	
	$query = "SELECT DISTINCT a.id FROM #__adsmanager_ads as a ".
						 "LEFT JOIN #__adsmanager_adcat as adcat ON a.id = adcat.adid WHERE $search";
	$database->setQuery($query);	
	$total = count($database->loadObjectList());

if ($text_search <> "") {
		$search .= " AND (a.ad_headline LIKE '%$text_search%' OR a.ad_text LIKE '%$text_search%') AND a.published = 1";
	}
	else
		$search .= " AND a.published = 1";
		
	$url .= $url_param;
	
	$query = "SELECT DISTINCT a.id FROM #__adsmanager_ads as a ".
						 "LEFT JOIN #__adsmanager_adcat as adcat ON a.id = adcat.adid WHERE $search";
	$database->setQuery($query);	
	$total = count($database->loadObjectList());

<?php
$tab_texte_temp = explode (" ",$texte);
//on purge les case vides (au cas où plusieurs espace ait été rentré)
//on purge aussi les balncs avant et après les valeurs
$tab_texte =array();
foreach ($tab_texte_temp as $valeur)
{
	$valeur = trim($valeur);
	if (!empty($valeur)) array_push ($tab_texte,$valeur);
}

//on fait un foreach avec toute les valeurs obtenues si elle sont dans le mêmes champs 
$requete = "SELECT champ FROM table WHERE ";
foreach ($tab_texte as  $cle => $valeur)
{
	$requete .= ($cle ==0) ? "champ LIKE '%$valeur%' " : " AND champ LIKE '%$valeur%' ";
}
echo $requete;
?>