Merge e5303d7ea0 into 2aee46f169

Update readme: fix grammatical error in java.md

languages/java.md

@@ -286,7 +286,7 @@ for(dataType item : array) {
 
 ### ACCESS MODIFIERS
 
-1. defualt(No keyword required)
+1. default(No keyword required)
 2. private
 3. public
 4. protected

languages/php.php

@@ -602,3 +602,8 @@ echo $host; // domain-name.com
 $text = "A regular expression (shortened as regex) is a sequence of characters that define a search pattern. Usually such patterns are used by string-searching algorithms for 'find' or 'find and replace' operations on strings, or for input validation.";
 $text = preg_replace("/\b(regex)\b/i", 'replaced content', $text);
 echo $text; /*A regular expression (shortened as replaced content) is a sequence of characters that define a search pattern. Usually such patterns are used by string-searching algorithms for 'find' or 'find and replace' operations on strings, or for input validation.*/
+
+//  spread operator > PHP 7.4
+$array1 = [1, 2, 3];
+$array2 = [4, 5, 6];
+$merge_array = [0, ...$array1, ...$array2]; // [0, 1, 2, 3, 4, 5, 6]