Fix deprecated method, empty buffer before output

examples/direct.php

@@ -11,8 +11,8 @@
     targetSize: "200x200",
     // Fun fact: if you set null for these, you'll get a random color for each generated placeholder!
     // You can also specify a specific hex color. ("#EEE" or "#EEEEEE" are both accepted)
-    textColorHex: null,
-    backgroundColorHex: "#AFF"
+    textColorHex: "#333",
+    backgroundColorHex: "#AFB"
 );
 
-$generator->makePlaceholderImage("");
+$generator->generate("");

src/ImageGenerator.php

@@ -34,7 +34,7 @@ public function __construct(
      * If null, won't render any text.
      *
      * @param null|string $path: The path where the image needs to be stored.
-     * If null, will directly output the image.
+     * If null, will directly output the image to the buffer.
      *
      * @param null|string $size: The target size of the image that will be rendered.
      * For example: "100x100" is a valid size.
@@ -141,15 +141,15 @@ public function generate($text = "", $path = null, $size = null, $bgHex = null,
             );
         }
 
-        // Render image
-        if ($path == null) {
+        if ($path === null) {
+            ob_clean();
             header('Content-type: image/png');
             echo imagepng($imageResource, null);
             exit;
-        } else {
-            imagepng($imageResource, $path);
-            return true;
         }
+
+        imagepng($imageResource, $path);
+        return true;
     }
 
     /**
@@ -158,6 +158,6 @@ public function generate($text = "", $path = null, $size = null, $bgHex = null,
      */
     public function makePlaceholderImage($text = "", $path = null, $size = null, $bgHex = null, $fgHex = null): bool
     {
-        return $this->makePlaceholderImage($text, $path, $size, $bgHex, $fgHex);
+        return $this->generate($text, $path, $size, $bgHex, $fgHex);
     }
 }