Add: e_parse::toFlatArray() and e_parse::fromFlatArray()

Utility functions to convert multi-dimensional arrays to slash-delimited
single-dimensional arrays and vice versa

e107_handlers/e_parse_class.php

@@ -1806,6 +1806,65 @@ class e_parse
 	}
 
 
+	/**
+	 * Flatten a multi-dimensional associative array with slashes.
+	 *
+	 * Based on Illuminate\Support\Arr::dot()
+	 * @copyright Copyright (c) Taylor Otwell
+	 * @license https://github.com/illuminate/support/blob/master/LICENSE.md MIT License
+	 * @param $array
+	 * @param string $prepend
+	 * @return array
+	 */
+	public static function toFlatArray($array, $prepend = '')
+	{
+		$results = [];
+
+		foreach ($array as $key => $value)
+		{
+			if (is_array($value) && !empty($value))
+			{
+				$results = array_merge($results, static::toFlatArray($value, $prepend . $key . '/'));
+			}
+			else
+			{
+				$results[$prepend . $key] = $value;
+			}
+		}
+
+		return $results;
+	}
+
+
+	/**
+	 * Convert a flattened slash-delimited multi-dimensional array back into an actual multi-dimensional array
+	 *
+	 * Inverse of {@link e_parse::toFlatArray()}
+	 *
+	 * @param        $array
+	 * @param string $unprepend
+	 * @return array
+	 */
+	public static function fromFlatArray($array, $unprepend = '')
+	{
+		$output = [];
+		foreach ($array as $key => $value)
+		{
+			if (!empty($unprepend) && substr($key, 0, strlen($unprepend)) == $unprepend)
+				$key = substr($key, strlen($unprepend));
+			$parts = explode('/', $key);
+			$nested = &$output;
+			while (count($parts) > 1)
+			{
+				$nested = &$nested[array_shift($parts)];
+				if (!is_array($nested)) $nested = [];
+			}
+			$nested[array_shift($parts)] = $value;
+		}
+		return $output;
+	}
+
+
 	/**
 	 * Convert text blocks which are to be embedded within JS
 	 *

e107_plugins/social/admin_config.php

@@ -656,7 +656,7 @@ class social_ui extends e_admin_ui
 					<tr><td>".LAN_TYPE."</td><td>$provider_type</td></tr>
 						";
 
-		$fieldInfo = self::array_slash($slcm->getFieldsOf($provider_name));
+		$fieldInfo = e107::getParser()->toFlatArray($slcm->getFieldsOf($provider_name));
 
 
 
@@ -706,7 +706,7 @@ class social_ui extends e_admin_ui
 						";
 
 		$text .= "<td><table class='table table-bordered table-condensed' style='margin:0'>";
-		$fieldInfo = self::array_slash($slcm->getFieldsOf($provider_name));
+		$fieldInfo = e107::getParser()->toFlatArray($slcm->getFieldsOf($provider_name));
 		foreach ($fieldInfo as $fieldSlash => $description)
 		{
 			$field = str_replace("/", "][", $fieldSlash);
@@ -748,33 +748,6 @@ class social_ui extends e_admin_ui
 		return $text;
 	}
 
-	/**
-	 * Based on Illuminate\Support\Arr::dot()
-	 * @copyright Copyright (c) Taylor Otwell
-	 * @license https://github.com/illuminate/support/blob/master/LICENSE.md MIT License
-	 * @param $array
-	 * @param string $prepend
-	 * @return array
-	 */
-	private static function array_slash($array, $prepend = '')
-	{
-		$results = [];
-
-		foreach ($array as $key => $value)
-		{
-			if (is_array($value) && !empty($value))
-			{
-				$results = array_merge($results, static::array_slash($value, $prepend . $key . '/'));
-			}
-			else
-			{
-				$results[$prepend . $key] = $value;
-			}
-		}
-
-		return $results;
-	}
-
 	private static function getPlaceholderFor($providerName, $fieldSlash)
 	{
 		switch ($fieldSlash)

e107_tests/tests/unit/e_parseTest.php

@@ -583,6 +583,44 @@ while($row = $sql->fetch())
 
 		}
 */
+		public function testToFlatArray()
+		{
+			$input = [
+				'a' => [
+					'b' => [
+						'c' => 'value',
+					],
+				],
+			];
+			$expected = [
+				'prepend/xyza/b/c' => 'value'
+			];
+
+			$tp = $this->tp;
+			$actual = $tp->toFlatArray($input, 'prepend/xyz');
+
+			$this->assertSame($expected, $actual);
+		}
+
+		public function testFromFlatArray()
+		{
+			$input = [
+				'prepend/xyza/b/c' => 'value'
+			];
+			$expected = [
+				'a' => [
+					'b' => [
+						'c' => 'value',
+					],
+				],
+			];
+
+			$tp = $this->tp;
+			$actual = $tp->fromFlatArray($input, 'prepend/xyz');
+
+			$this->assertSame($expected, $actual);
+		}
+
 		public function testToForm()
 		{