toBool modifier (#6159)

src/Modifiers/CoreModifiers.php

@@ -2460,6 +2460,22 @@ public function title($value)
         return Stringy::titleize($value, $ignore);
     }
 
+    /**
+     * Convert value to a boolean.
+     *
+     * @param $params
+     * @param $value
+     * @return bool
+     */
+    public function toBool($value, $params)
+    {
+        if (is_string($value)) {
+            return Str::toBool($value);
+        }
+
+        return boolval($value);
+    }
+
     /**
      * Converts the data to json.
      *

tests/Modifiers/ToBoolTest.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Tests\Modifiers;
+
+use Statamic\Modifiers\Modify;
+use Tests\TestCase;
+
+class ToBoolTest extends TestCase
+{
+    /** @test */
+    public function it_bools(): void
+    {
+        $this->assertTrue($this->modify(1));
+        $this->assertFalse($this->modify(0));
+        $this->assertTrue($this->modify('foo'));
+        $this->assertFalse($this->modify('false'));
+        $this->assertFalse($this->modify('FALSE'));
+        $this->assertFalse($this->modify('False'));
+        $this->assertTrue($this->modify(new \stdClass));
+    }
+
+    private function modify($value)
+    {
+        return Modify::value($value)->toBool()->fetch();
+    }
+}