Migrating from PHP 5.6.x to PHP 7.0.x

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Despite the fact that PHP 7.0 is a new major version, efforts have beenmade to make migration as painless as possible. This release focusesmainly on removing functionality deprecated in previous versions andimproving language consistency.

There are a few incompatibilitiesand new features that shouldbe considered, and code should be tested before switching PHP versions inproduction environments.

See also the migration guides for PHP versions5.0.x,5.1.x,5.2.x,5.3.x,5.4.x,5.5.x and5.6.x.

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