Fix PHP requirement in installation documentation#3198

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gnutix wants to merge 5 commits intosymfony:masterfrom

gnutix:patch-1

Commits on Nov 17, 2013

Fix PHP requirement in installation documentation
Dorian Villet
committed
Be more explicit that PHP 5.3.8 or higher is the recommendation
Dorian Villet
committed
Keep the minimum viable info about PHP in the Book's installation chapter
Dorian Villet
committed
Add a warning about PHP < 5.3.8 limitations in the requirements article
Dorian Villet
committed
Fix linking to the requirements section.
Dorian Villet
committed