Merge pull request #2983 from briannesbitt/feature/create-from-format-integer-when-relevant

Allow integer in createFromFormat()

Author: kylekatarnls

src/Carbon/Traits/Creator.php

@@ -643,6 +643,19 @@ public static function createFromFormat($format, $time, $timezone = null): ?self
     {
         $function = static::$createFromFormatFunction;
 
+        // format is a single numeric unit
+        if (\is_int($time) && \in_array(ltrim($format, '!'), ['U', 'Y', 'y', 'X', 'x', 'm', 'n', 'd', 'j', 'w', 'W', 'H', 'h', 'G', 'g', 'i', 's', 'u', 'z', 'v'], true)) {
+            $time = (string) $time;
+        }
+
+        if (!\is_string($time)) {
+            @trigger_error(
+                'createFromFormat() will only accept string or integer for 1-letter format representing a numeric unit int next version',
+                \E_USER_DEPRECATED,
+            );
+            $time = (string) $time;
+        }
+
         if (!$function) {
             return static::rawCreateFromFormat($format, $time, $timezone);
         }

tests/Jenssegers/DateTest.php

@@ -47,9 +47,20 @@ public function testMake()
 
     public function testCreateFromCarbon()
     {
+        // Preferred way
         $date = Carbon::make(Carbon::createFromFormat('U', '1367186296'));
         $this->assertInstanceOf(Carbon::class, $date);
         $this->assertSame(1367186296, $date->getTimestamp());
+
+        // Accepted for backward-compatibility with some libraries
+        $date = Carbon::make(Carbon::createFromFormat('!U', 1367186296));
+        $this->assertInstanceOf(Carbon::class, $date);
+        $this->assertSame(1367186296, $date->getTimestamp());
+
+        // Deprecated usage
+        $date = Carbon::make(Carbon::createFromFormat('!md', 1225));
+        $this->assertInstanceOf(Carbon::class, $date);
+        $this->assertSame(30931200, $date->getTimestamp());
     }
 
     public function testManipulation()