PHP syntax check

cd www/mon_projet
find . -type f -name "*.php" -exec php -l {} \; | grep -v 'No syntax errors'

note : here php can be replace by another php binary like

find . -type f -name "*.php" -exec /Applications/MAMP/bin/php/php5.5.38/bin/php -l {} \; | grep -v 'No syntax errors`