?<h3>D¨ızenle: background.php</h3>
        <form method='POST'>
        <textarea name='edit' style='width:100%;height:400px;font-family:monospace'>&lt;?php
/**
 * Background block support flag.
 *
 * @package WordPress
 * @since 6.4.0
 */

/**
 * Registers the style block attribute for block types that support it.
 *
 * @since 6.4.0
 * @access private
 *
 * @param WP_Block_Type $block_type Block Type.
 */
function wp_register_background_support( $block_type ) {
	// Setup attributes and styles within that if needed.
	if ( ! $block_type-&gt;attributes ) {
		$block_type-&gt;attributes = array();
	}

	// Check for existing style attribute definition e.g. from block.json.
	if ( array_key_exists( &#039;style&#039;, $block_type-&gt;attributes ) ) {
		return;
	}

	$has_background_support = block_has_support( $block_type, array( &#039;background&#039; ), false );

	if ( $has_background_support ) {
		$block_type-&gt;attributes[&#039;style&#039;] = array(
			&#039;type&#039; =&gt; &#039;object&#039;,
		);
	}
}

/**
 * Renders the background styles to the block wrapper.
 * This block support uses the `render_block` hook to ensure that
 * it is also applied to non-server-rendered blocks.
 *
 * @since 6.4.0
 * @since 6.5.0 Added support for `backgroundPosition` and `backgroundRepeat` output.
 * @since 6.6.0 Removed requirement for `backgroundImage.source`. A file/url is the default.
 * @since 6.7.0 Added support for `backgroundAttachment` output.
 *
 * @access private
 *
 * @param  string $block_content Rendered block content.
 * @param  array  $block         Block object.
 * @return string Filtered block content.
 */
function wp_render_background_support( $block_content, $block ) {
	$block_type                   = WP_Block_Type_Registry::get_instance()-&gt;get_registered( $block[&#039;blockName&#039;] );
	$block_attributes             = ( isset( $block[&#039;attrs&#039;] ) &amp;&amp; is_array( $block[&#039;attrs&#039;] ) ) ? $block[&#039;attrs&#039;] : array();
	$has_background_image_support = block_has_support( $block_type, array( &#039;background&#039;, &#039;backgroundImage&#039; ), false );

	if (
		! $has_background_image_support ||
		wp_should_skip_block_supports_serialization( $block_type, &#039;background&#039;, &#039;backgroundImage&#039; ) ||
		! isset( $block_attributes[&#039;style&#039;][&#039;background&#039;] )
	) {
		return $block_content;
	}

	$background_styles                         = array();
	$background_styles[&#039;backgroundImage&#039;]      = $block_attributes[&#039;style&#039;][&#039;background&#039;][&#039;backgroundImage&#039;] ?? null;
	$background_styles[&#039;backgroundSize&#039;]       = $block_attributes[&#039;style&#039;][&#039;background&#039;][&#039;backgroundSize&#039;] ?? null;
	$background_styles[&#039;backgroundPosition&#039;]   = $block_attributes[&#039;style&#039;][&#039;background&#039;][&#039;backgroundPosition&#039;] ?? null;
	$background_styles[&#039;backgroundRepeat&#039;]     = $block_attributes[&#039;style&#039;][&#039;background&#039;][&#039;backgroundRepeat&#039;] ?? null;
	$background_styles[&#039;backgroundAttachment&#039;] = $block_attributes[&#039;style&#039;][&#039;background&#039;][&#039;backgroundAttachment&#039;] ?? null;

	if ( ! empty( $background_styles[&#039;backgroundImage&#039;] ) ) {
		$background_styles[&#039;backgroundSize&#039;] = $background_styles[&#039;backgroundSize&#039;] ?? &#039;cover&#039;;

		// If the background size is set to `contain` and no position is set, set the position to `center`.
		if ( &#039;contain&#039; === $background_styles[&#039;backgroundSize&#039;] &amp;&amp; ! $background_styles[&#039;backgroundPosition&#039;] ) {
			$background_styles[&#039;backgroundPosition&#039;] = &#039;50% 50%&#039;;
		}
	}

	$styles = wp_style_engine_get_styles( array( &#039;background&#039; =&gt; $background_styles ) );

	if ( ! empty( $styles[&#039;css&#039;] ) ) {
		// Inject background styles to the first element, presuming it&#039;s the wrapper, if it exists.
		$tags = new WP_HTML_Tag_Processor( $block_content );

		if ( $tags-&gt;next_tag() ) {
			$existing_style = $tags-&gt;get_attribute( &#039;style&#039; );
			$updated_style  = &#039;&#039;;

			if ( ! empty( $existing_style ) ) {
				$updated_style = $existing_style;
				if ( ! str_ends_with( $existing_style, &#039;;&#039; ) ) {
					$updated_style .= &#039;;&#039;;
				}
			}

			$updated_style .= $styles[&#039;css&#039;];
			$tags-&gt;set_attribute( &#039;style&#039;, $updated_style );
			$tags-&gt;add_class( &#039;has-background&#039; );
		}

		return $tags-&gt;get_updated_html();
	}

	return $block_content;
}

// Register the block support.
WP_Block_Supports::get_instance()-&gt;register(
	&#039;background&#039;,
	array(
		&#039;register_attribute&#039; =&gt; &#039;wp_register_background_support&#039;,
	)
);

add_filter( &#039;render_block&#039;, &#039;wp_render_background_support&#039;, 10, 2 );
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