Update readme with 7.2 minimum version

transprime-research · May 3, 2020 · e5fef5e · e5fef5e
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diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,8 @@
 language: php
 
 php:
+  - 7.2
+  - 7.3
   - 7.4
 
 before_script:

diff --git a/README.md b/README.md
@@ -65,6 +65,7 @@ $arr = array_intersect($arr, [0 => 'ADE']);
 
 //$arr is ['ADE']
 ```
+> PS: You can still use the old `function() { return v; }`, `fn()` is the new short arrow function in PHP 7.4+ See: https://www.php.net/manual/en/functions.arrow.php
 
 ## Other Usages
-Original file line number
+Diff line change
@@ Expand Up / @@ -65,6 +65,7 @@ $arr = array_intersect($arr, [0 => 'ADE']); @@
     //$arr is ['ADE']
     ```
+    > PS: You can still use the old `function() { return v; }`, `fn()` is the new short arrow function in PHP 7.4+ See: https://www.php.net/manual/en/functions.arrow.php
     ## Other Usages
@@ Expand Down @@