U V

SE/se-lib/V.php

@@ -693,6 +693,21 @@ EOF';
 			return $ret;
 		}, "");
 	}
+	static function fixUtf8ToHtmlChars($input) {
+		$input = self::stripInvalidXmlChars($input);
+		$input = self::fixUtf8ToHtmlChar($input, 'µ', 'µ');
+		$input = self::fixUtf8ToHtmlChar($input, 'φ', 'φ');
+		$input = self::fixUtf8ToHtmlChar($input, 'Φ', 'Φ');
+		$input = self::fixUtf8ToHtmlChar($input, '–', '-');
+		//$input = $this->fixUtf8ToHtmlChar($input, '°', '°');// ° is ok in latin2
+		return $input;
+	}
+	static function fixUtf8ToHtmlChar($input, $from, $to) {
+		if (function_exists('mb_split') && false !== ($pos = mb_strpos($input, $from, 0, 'utf-8'))) {
+			return implode($to, mb_split($from, $input));
+		}
+		return $input;
+	}
 
 	static function deleteWholeDirectory($dir, $returnFiles = false, $doDelete = true) {
 		if (!is_dir($dir)) throw new Exception("{$dir} must be a directory");
@@ -729,7 +744,7 @@ EOF';
 		return (false === $ret) ? [] : $ret;
 	}
 
-	static function tryHandleException($handler, $callback, $args) { // try again on exception
+	static function tryHandleException(callable $handler, callable $callback, array $args = []) { // try again on exception
 		try {
 			return call_user_func_array($callback, $args);
 		} catch (Exception $e) {
@@ -740,4 +755,13 @@ EOF';
 		}
 	}
 
+	// @param $callback must return bool
+	function arrayFindFirst(array $input, callable $callback) { // @return found index or -1 if not found
+		$idx = -1;
+		foreach ($input as $idx => $item) {
+			if ($callback($item)) return $idx;
+		}
+		return $idx;
+	}
+
 }