Initial data commit

Task/Reverse-a-string/PHP/reverse-a-string-1.php

@@ -0,0 +1,2 @@
+// Will split every Unicode character to array, reverse array and will convert it to string.
+join('', array_reverse(preg_split('""u', $string, -1, PREG_SPLIT_NO_EMPTY)));

Task/Reverse-a-string/PHP/reverse-a-string-2.php

@@ -0,0 +1 @@
+implode('', array_reverse(mb_str_split($string)));

Task/Reverse-a-string/PHP/reverse-a-string-3.php

@@ -0,0 +1,21 @@
+$a = mb_convert_encoding('👦🏻👋', 'UTF-8', 'HTML-ENTITIES'); // 👦🏻👋
+
+function str_to_array($string)
+{
+  $length = grapheme_strlen($string);
+  $ret = [];
+
+  for ($i = 0; $i < $length; $i += 1) {
+
+    $ret[] = grapheme_substr($string, $i, 1);
+  }
+
+  return $ret;
+}
+
+function utf8_strrev($string)
+{
+  return implode(array_reverse(str_to_array($string)));
+}
+
+print_r(utf8_strrev($a)); // 👋👦🏻

Task/Reverse-a-string/PHP/reverse-a-string-4.php

@@ -0,0 +1 @@
+strrev($string);