PHP

larael drop foreign key

Schema::table('posts', function (Blueprint $table) {
	$table->dropForeign(['category_id']);
});

table drop foreign php laravel

 public function down()
 {
   Schema::table('tarefas', function (Blueprint $table) {
     $table->dropForeign('tarefas_user_id_foreign');

     $table->dropColumn('user_id');
   });
 }

remove foreign key constraint laravel

Schema::table('table_name', function (Blueprint $table) {
    $table->dropForeign(['foreign_key']);
    $table->dropColumn('column_key');
});

PS: usually foreign_key = column_key

ex: 

Schema::table('despatch_discrepancies', function (Blueprint $table) {
    $table->dropForeign(['pick_detail_id']);
    $table->dropColumn('pick_detail_id');
});

laravel remove foreign key

$table->dropForeign('posts_user_id_foreign');

laravel drop foreign key

// Primary table name, from Schema::table(<table>)
// Primary column, from $table->foreign(<column>)
$table->dropForeign('<table>_<column>_foreign');

delete all rows in table laravel foreign key

DB::statement("SET foreign_key_checks=0");
Model::truncate();
DB::statement("SET foreign_key_checks=1");