How to check variable is declared or not in Laravel to avoid an Error.

Upgrade & Secure Your Future with DevOps, SRE, DevSecOps, MLOps!

We spend hours scrolling social media and waste money on things we forget, but won’t spend 30 minutes a day earning certifications that can change our lives.
Master in DevOps, SRE, DevSecOps & MLOps by DevOpsSchool!

Learn from Guru Rajesh Kumar and double your salary in just one year.

Suppose we have not declared a variable in the controller and calling it in views, then it shows undefined variable Error. See the below image.

Suppose, we are calling $string variable and we have not declared the variable in the controller so it gives an error like above shown.
To avoid this error we use @isset function. See the below image for code.

as we have not declared the string so it returns Variable is not found. See the below image.

Laravel 5.5 CRUD Tutorial, Introduction And Agenda Overview, Laravel Training Part – 1 DevopsSchool

Sushant Kumar

With MotoShare.in, you can book a bike instantly, enjoy doorstep delivery, and ride without worries. Perfect for travelers, professionals, and adventure enthusiasts looking for a seamless mobility solution.

Certification Courses

DevOpsSchool has introduced a series of professional certification courses designed to enhance your skills and expertise in cutting-edge technologies and methodologies. Whether you are aiming to excel in development, security, or operations, these certifications provide a comprehensive learning experience. Explore the following programs:

DevOps Certification - Learn the fundamentals and advanced concepts of DevOps practices and tools.

DevSecOps Certification - Master the integration of security within the DevOps workflow.

SRE Certification - Gain expertise in Site Reliability Engineering and ensure reliability at scale.

MLOps Certification - Dive into Machine Learning Operations and streamline ML workflows.

AiOps Certification - Discover AI-driven operations management for next-gen IT environments.