Change array to binary string

Author: kleisauke

src/Image.php

@@ -933,7 +933,7 @@ public static function newFromArray(
     /**
      * Wraps an Image around an area of memory containing a C-style array.
      *
-     * @param array  $data   C-style array.
+     * @param string $data   C-style array.
      * @param int    $width  Image width in pixels.
      * @param int    $height Image height in pixels.
      * @param int    $bands  Number of bands.
@@ -942,7 +942,7 @@ public static function newFromArray(
      * @return Image A new Image.
      */
     public static function newFromMemory(
-        array $data,
+        string $data,
         int $width,
         int $height,
         int $bands,
@@ -1085,9 +1085,9 @@ public function writeToBuffer(string $suffix, array $options = []): string
     /**
      * Write an image to a large memory array.
      *
-     * @return array The memory array.
+     * @return string The memory array.
      */
-    public function writeToMemory(): array
+    public function writeToMemory(): string
     {
         Utils::debugLog('writeToMemory', [
             'instance' => $this,

tests/NewTest.php

@@ -110,8 +110,8 @@ public function testVipsNewInterpolator()
 
     public function testVipsNewFromMemory()
     {
-        $byte_array = array_fill(0, 200, 0);
-        $image = Vips\Image::newFromMemory($byte_array, 20, 10, 1, Vips\BandFormat::UCHAR);
+        $binaryStr = pack('C*', ...array_fill(0, 200, 0));
+        $image = Vips\Image::newFromMemory($binaryStr, 20, 10, 1, Vips\BandFormat::UCHAR);
 
         $this->assertEquals($image->width, 20);
         $this->assertEquals($image->height, 10);

tests/WriteTest.php

@@ -62,11 +62,11 @@ public function testVipsWriteToBuffer()
 
     public function testVipsWriteToMemory()
     {
-        $byte_array = array_fill(0, 200, 0);
-        $image = Vips\Image::newFromMemory($byte_array, 20, 10, 1, Vips\BandFormat::UCHAR);
-        $mem_arr = $image->writeToMemory();
+        $binaryStr = pack('C*', ...array_fill(0, 200, 0));
+        $image = Vips\Image::newFromMemory($binaryStr, 20, 10, 1, Vips\BandFormat::UCHAR);
+        $memStr = $image->writeToMemory();
 
-        $this->assertEquals($byte_array, $mem_arr);
+        $this->assertEquals($binaryStr, $memStr);
     }
 }