ajout "pas favoris" pour graphe

favoris.php

@@ -123,30 +123,34 @@ while($row = mysqli_fetch_assoc($result2)) :?>
     influ.push({y: <?= $row['nb'] ?>,label: '<?= $row['nom_artiste'] ?>'});
 <?php endwhile; ?>
 
-
-window.onload = function () {
-
-var chart = new CanvasJS.Chart("chartContainer", {
-    backgroundColor: "transparent ",
-	theme: "theme2",
-	animationEnabled: true,
-	title:{
-		text: "Répartitions des 10 premier favoris"
-	},
-	legend:{
-		cursor: "pointer",
-	},
-	data: [{
-		type: "doughnut",
-        innerRadius: 90,
-        toolTipContent: "<b>{label}</b>: {y} foollowers (#percent%)",
-		dataPoints: influ,
-	}]
-});
-chart.options.data[0].dataPoints = influ;
-chart.render();
-
-
+if (influ.length > 0) {
+    window.onload = function () {
+    
+    var chart = new CanvasJS.Chart("chartContainer", {
+        backgroundColor: "transparent ",
+        theme: "theme2",
+        animationEnabled: true,
+        title:{
+            text: "Répartitions des 10 premier favoris"
+        },
+        legend:{
+            cursor: "pointer",
+        },
+        data: [{
+            type: "doughnut",
+            innerRadius: 90,
+            toolTipContent: "<b>{label}</b>: {y} foollowers (#percent%)",
+            dataPoints: influ,
+        }]
+    });
+    chart.options.data[0].dataPoints = influ;
+    chart.render();
+    
+    
+    }
+}
+else {
+    document.getElementById('chartContainer').innerHTML = 'Pas de favoris';
 }
 </script>