move getJSONErrorString to global included file

admin.php

@@ -18,6 +18,8 @@
 
 
 declare(strict_types=1);
+require_once('include/getJsonErrorString.php');
+
 
 const FOLDER_PATH = '../video/unwatched';
 const MAX_RECURSE_DEPTH = 5;
@@ -133,10 +135,12 @@ function getUnsavedMetadata() : void
 		$out->path_info = $path_info;
 		$json = json_encode($out);
 
-		if ($json)
+		if ($json) {
 			echo $json;
-		else
+		} else {
-			echo '{"errors":"error enconding json in ' . __FUNCTION__ . '"}';
+			echo '{"errors":"' . __FUNCTION__ . ', error enconding json: '
+				. getJsonErrorString(json_last_error()) . '"}';
+		}
 	} else {
 		$out->errors = $g_errors;
 		echo json_encode($out);

include/getJsonErrorString.php

@@ -0,0 +1,63 @@
+<?php
+/*
+ *	This file is part of video_metadata.
+ *
+ *	video_metadata is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	video_metadata is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with video_metadata.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+
+function getJsonErrorString($error_enum) : string
+{
+	$err = '';
+
+	switch($error_enum) {
+		case JSON_ERROR_NONE:
+			$err = 'No error has occurred';
+			break;
+		case JSON_ERROR_DEPTH:
+			$err = 'The maximum stack depth has been exceeded';
+			break;
+		case JSON_ERROR_STATE_MISMATCH:
+			$err ='Invalid or malformed JSON';
+			break;
+		case JSON_ERROR_CTRL_CHAR:
+			$err = 'Control character error, possibly incorrectly encoded';
+			break;
+		case JSON_ERROR_SYNTAX:
+			$err = 'Syntax error';
+			break;
+		case JSON_ERROR_UTF8:
+			$err = 'Malformed UTF-8 characters, possibly incorrectly encoded';
+			break;
+		case JSON_ERROR_RECURSION:
+			$err = 'One or more recursive references in the value to be encoded';
+			break;
+		case JSON_ERROR_INF_OR_NAN:
+			$err = 'One or more NAN or INF values in the value to be encoded';
+			break;
+		case JSON_ERROR_UNSUPPORTED_TYPE:
+			$err = 'A value of a type that cannot be encoded was given';
+			break;
+		case JSON_ERROR_INVALID_PROPERTY_NAME:
+			$err = 'A property name that cannot be encoded was given';
+			break;
+		case JSON_ERROR_UTF16:
+			$err = 'Malformed UTF-16 characters, possibly incorrectly encoded';
+			break;
+	}
+
+	return $err;
+}
+
+?>

include/tmdb_interface.php

@@ -17,6 +17,9 @@
  */
 
 
+require_once('getJsonErrorString.php');
+
+
 class tmdb_interface
 {
 	const BASE_API_URL = 'https://api.themoviedb.org/3';
@@ -43,7 +46,7 @@ class tmdb_interface
 
 		if ($j_err !== JSON_ERROR_NONE) {
 			$this->errors[] = $str;
-			$this->errors[] = __METHOD__ . ", JSON error: " . get_json_error(json_last_error());
+			$this->errors[] = __METHOD__ . ", JSON error: " . getJsonErrorString(json_last_error());
 		}
 
 		return strlen($str);
@@ -94,49 +97,6 @@ class tmdb_interface
 	public $errors = [];
 
 
-	private function get_json_error($error_enum)
-	{
-		$err = '';
-
-		switch($error_enum) {
-			case JSON_ERROR_NONE:
-				$err = 'No error has occurred';
-				break;
-			case JSON_ERROR_DEPTH:
-				$err = 'The maximum stack depth has been exceeded';
-				break;
-			case JSON_ERROR_STATE_MISMATCH:
-				$err ='Invalid or malformed JSON';
-				break;
-			case JSON_ERROR_CTRL_CHAR:
-				$err = 'Control character error, possibly incorrectly encoded';
-				break;
-			case JSON_ERROR_SYNTAX:
-				$err = 'Syntax error';
-				break;
-			case JSON_ERROR_UTF8:
-				$err = 'Malformed UTF-8 characters, possibly incorrectly encoded';
-				break;
-			case JSON_ERROR_RECURSION:
-				$err = 'One or more recursive references in the value to be encoded';
-				break;
-			case JSON_ERROR_INF_OR_NAN:
-				$err = 'One or more NAN or INF values in the value to be encoded';
-				break;
-			case JSON_ERROR_UNSUPPORTED_TYPE:
-				$err = 'A value of a type that cannot be encoded was given';
-				break;
-			case JSON_ERROR_INVALID_PROPERTY_NAME:
-				$err = 'A property name that cannot be encoded was given';
-				break;
-			case JSON_ERROR_UTF16:
-				$err = 'Malformed UTF-16 characters, possibly incorrectly encoded';
-				break;
-		}
-
-		return $err;
-	}
-
 	private $start_time = 0;
 }