Fix: Handle mixed-type values in compileInsert (#53948)

* Fix: Prevent incorrect handling of single-value inserts by checking if $values itself is a list using `array_is_list` instead of checking if the first element (`reset($values)`) is an array.

* Add tests for `compileInsert` with different value structures

* Refactor: Improve insert value handling for non-list arrays

* formatting

* formatting

* formatting

---------

Co-authored-by: Taylor Otwell <[email protected]>

Author: alipadron

src/Illuminate/Database/Query/Grammars/Grammar.php

@@ -1168,8 +1168,11 @@ public function compileInsert(Builder $query, array $values)
             return "insert into {$table} default values";
         }
 
-        if (! is_array(reset($values))) {
-            $values = [$values];
+        if (! array_is_list($values)) {
+            $values = (new Collection(array_keys($values)))
+                ->some(fn ($key) => ! is_numeric($key))
+                    ? [$values]
+                    : array_values($values);
         }
 
         $columns = $this->columnize(array_keys(reset($values)));

tests/Database/DatabaseQueryGrammarTest.php

@@ -2,9 +2,11 @@
 
 namespace Illuminate\Tests\Database;
 
+use Illuminate\Database\ConnectionInterface;
 use Illuminate\Database\Query\Builder;
 use Illuminate\Database\Query\Expression;
 use Illuminate\Database\Query\Grammars\Grammar;
+use Illuminate\Database\Query\Processors\Processor;
 use Mockery as m;
 use PHPUnit\Framework\TestCase;
 use ReflectionClass;
@@ -41,4 +43,79 @@ public function testWhereRawReturnsStringWhenStringPassed()
 
         $this->assertSame('select * from "users"', $rawQuery);
     }
+
+    public function testCompileInsertSingleValue()
+    {
+        $builder = $this->getBuilder();
+        $grammar = $builder->getGrammar();
+
+        $sql = $grammar->compileInsert($builder, ['name' => 'John Doe', 'email' => '[email protected]']);
+        $this->assertSame('insert into "users" ("name", "email") values (?, ?)', $sql);
+    }
+
+    public function testCompileInsertMultipleValues()
+    {
+        $builder = $this->getBuilder();
+        $grammar = $builder->getGrammar();
+        $values = [
+            ['name' => 'John Doe', 'email' => '[email protected]'],
+            ['name' => 'Alice Wong', 'email' => '[email protected]'],
+        ];
+
+        $sql = $grammar->compileInsert($builder, $values);
+        $this->assertSame('insert into "users" ("name", "email") values (?, ?), (?, ?)', $sql);
+    }
+
+    public function testCompileInsertSingleValueWhereFirstKeyIsArray()
+    {
+        $builder = $this->getBuilder();
+        $grammar = $builder->getGrammar();
+        $value = [
+            'configuration' => [
+                'dark_mode' => false,
+                'language' => 'en',
+            ],
+            'name' => 'John Doe',
+            'email' => '[email protected]',
+        ];
+
+        $sql = $grammar->compileInsert($builder, $value);
+
+        $this->assertSame('insert into "users" ("configuration", "name", "email") values (?, ?, ?)', $sql);
+    }
+
+    public function testCompileInsertSingleValueWhereFirstKeyIsNotArray()
+    {
+        $builder = $this->getBuilder();
+        $grammar = $builder->getGrammar();
+
+        $value = [
+            'name' => 'John Doe',
+            'configuration' => [
+                'dark_mode' => false,
+                'language' => 'en',
+            ],
+            'email' => '[email protected]',
+        ];
+
+        $sql = $grammar->compileInsert($builder, $value);
+
+        $this->assertSame('insert into "users" ("name", "configuration", "email") values (?, ?, ?)', $sql);
+    }
+
+    protected function getConnection()
+    {
+        return m::mock(ConnectionInterface::class);
+    }
+
+    protected function getBuilder($tableName = 'users')
+    {
+        $grammar = new Grammar;
+        $processor = m::mock(Processor::class);
+
+        $builder = new Builder($this->getConnection(), $grammar, $processor);
+        $builder->from = $tableName;
+
+        return $builder;
+    }
 }