Remove Arr::isEmpty() but make sure is_empty still works

src/Modifiers/CoreModifiers.php

@@ -849,7 +849,17 @@ public function isBlank($value)
      */
     public function isEmpty($value)
     {
-        return Arr::isEmpty($value);
+        if (is_array($value)) {
+            foreach ($value as $subvalue) {
+                if (!$this->isEmpty($subvalue)) {
+                    return false;
+                }
+            }
+        } elseif (!empty($value) || $value !== '') {
+            return false;
+        }
+
+        return true;
     }
 
     /**

src/Support/Arr.php

@@ -144,29 +144,6 @@ public static function explodeOptions($string, $keyed = false)
         return $options;
     }
 
-    /**
-     * Checks if $value is an "empty" array
-     *
-     * It might have keys, but if those keys are all empty strings, it's empty.
-     *
-     * @param mixed  $value  Value to check
-     * @return bool
-     */
-    public static function isEmpty($value)
-    {
-        if (is_array($value)) {
-            foreach ($value as $subvalue) {
-                if (!self::isEmpty($subvalue)) {
-                    return false;
-                }
-            }
-        } elseif (!empty($value) || $value !== '') {
-            return false;
-        }
-
-        return true;
-    }
-
     /**
      * Normalize arguments
      *

tests/Modifiers/IsEmptyTest.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Tests\Modifiers;
+
+use Statamic\Facades\Antlers;
+use Statamic\Support\Str;
+use Tests\TestCase;
+
+class IsEmptyTest extends TestCase
+{
+    /** @test */
+    function it_checks_if_its_empty()
+    {
+        $this->assertTrue($this->parse('')); // empty string is empty
+        $this->assertTrue($this->parse([])); // empty array is empty
+
+        $this->assertFalse($this->parse(['foo' => 'bar'])); // definitely not empty
+
+        $this->assertTrue($this->parse(['foo' => ''])); // just consists of empty strings
+        $this->assertTrue($this->parse(['foo' => '', 'bar' => '']));
+
+        $this->assertFalse($this->parse(null)); // nulls are not empty
+        $this->assertFalse($this->parse(['foo' => null])); // array of nulls are not empty
+        $this->assertFalse($this->parse(['foo' => '', 'bar' => null]));
+
+        $this->assertTrue($this->parse(['foo' => []])); // recursion
+        $this->assertTrue($this->parse(['foo' => ['bar' => []]]));
+        $this->assertTrue($this->parse(['foo' => ['bar' => ['baz' => '']]]));
+        $this->assertFalse($this->parse(['foo' => ['bar' => ['baz' => 'qux']]]));
+        $this->assertFalse($this->parse(['foo' => ['bar' => ['baz' => null]]]));
+    }
+
+    function parse($arr)
+    {
+        return Str::toBool(Antlers::parse('{{ if arr|is_empty }}true{{ else }}false{{ /if }}', ['arr' => $arr]));
+    }
+}

tests/Support/ArrTest.php

@@ -90,24 +90,4 @@ function it_gets_the_first_non_null_value()
             'bar' => 'two',
         ], ['foo', 'bar']));
     }
-
-    /** @test */
-    function it_checks_if_its_empty()
-    {
-        $this->assertTrue(Arr::isEmpty([])); // completely empty array
-
-        $this->assertFalse(Arr::isEmpty(['foo' => 'bar'])); // definitely not empty
-
-        $this->assertTrue(Arr::isEmpty(['foo' => ''])); // just consists of empty strings
-        $this->assertTrue(Arr::isEmpty(['foo' => '', 'bar' => '']));
-
-        $this->assertFalse(Arr::isEmpty(['foo' => null])); // nulls are not empty
-        $this->assertFalse(Arr::isEmpty(['foo' => '', 'bar' => null]));
-
-        $this->assertTrue(Arr::isEmpty(['foo' => []])); // recursion
-        $this->assertTrue(Arr::isEmpty(['foo' => ['bar' => []]]));
-        $this->assertTrue(Arr::isEmpty(['foo' => ['bar' => ['baz' => '']]]));
-        $this->assertFalse(Arr::isEmpty(['foo' => ['bar' => ['baz' => 'qux']]]));
-        $this->assertFalse(Arr::isEmpty(['foo' => ['bar' => ['baz' => null]]]));
-    }
 }