Steps to upgrade php version in Symfony?

[iliyass-zamouri]

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I'm having troubles upgrading from php5 to php7

[hajarbr]

You can find code deprecations in:

• Dev Environment Console Logs: Deprecations will be logged when running the application in the development environment.
• Symfony Profiler: As you can see below, you'll find deprecations for the routes you visit under the Logs section