n Foreign keys with migrations: don’t forget UNSIGNED in Laravel 7 | CodimTh

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On . By CodimTh

For foreign key migrations instead of integer() use unsignedInteger() type or integer()->unsigned(), otherwise you may get SQL errors.

Example for field 'user_id':

Schema::create('posts', function (Blueprint $table) {


you can also you this unsignedInteger():



You can also use unsignedBigInteger() if that other column is bigInteger() type.



Riadh Rahmi

Senior Web Developer PHP/Drupal & Laravel

I am a senior web developer, I have experience in planning and developing large scale dynamic web solutions especially in Drupal & Laravel.

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