Where clauses in Laravel - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of a where clause in Laravel's Eloquent or Query Builder?

A where clause filters database query results by specifying conditions that rows must meet to be included in the output.

beginner

How do you write a simple where clause to get users with the name 'Alice'?

Use User::where('name', 'Alice')->get(); to get all users whose name is exactly 'Alice'.

beginner

What does this code do? ->where('age', '>', 18)

It filters results to include only rows where the 'age' column is greater than 18.

intermediate

How can you combine multiple where clauses in Laravel?

You chain multiple where calls like ->where('age', '>', 18)->where('status', 'active') to apply all conditions together.

intermediate

What is the difference between where and orWhere?

where adds an AND condition, while orWhere adds an OR condition between query filters.

Which method filters results where 'status' equals 'active'?

A ->where('status', 'active')

B ->filter('status', 'active')

C ->where('status', '==', 'active')

D ->where('status', '=', 'active')

In Laravel, the where method defaults to the '=' operator when omitted, so both A (shorthand) and D (explicit) are correct.

How do you get users older than 30 using a where clause?

A ->where('age', '>', 30)

B ->where('age', '<', 30)

C ->where('age', '=', 30)

D ->where('age', '!=', 30)

To get users older than 30, use where('age', '>', 30).

What does chaining multiple where clauses do?

A Filters results with AND logic

B Filters results with OR logic

C Overrides previous filters

D Returns all rows without filtering

Chaining where clauses applies AND logic, so all conditions must be true.

Which method adds an OR condition in Laravel queries?

A where

B orWhere

C filterOr

D orFilter

orWhere adds an OR condition between query filters.

How do you write a where clause with a closure for complex conditions?

A ->whereClosure(function($query) { ... })

B ->complexWhere(function($query) { ... })

C ->where(function($query) { ... })

D ->filter(function($query) { ... })

Use where with a closure to group conditions: ->where(function($query) { ... }).

Explain how to use multiple where clauses together in Laravel to filter data.

Think about how you add more than one condition to a query.

Describe the difference between where and orWhere in Laravel queries.

Consider how conditions combine to include or exclude rows.