install our default dependencies with myrepos and run doc/php_syntax_check.sh to (checks and reports all files, not just first failure)

.travis.yml

@@ -26,9 +26,12 @@ before_script:
   # - mysql -e 'create database egroupware'
   - rm -f ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini
   #- composer update --prefer-source $LOWEST_DEPS
+  - aptitude install myrepos
+  - mr --trust-all --stats up
 
 script:
-  - find . -name "*.php" | xargs -n1 php -l
+  #- find . -name "*.php" | xargs -n1 php -l
+  ./doc/php_syntax_check.sh
   #- ./vendor/bin/sabre-cs-fixer fix . --dry-run --diff
 
 cache:

doc/php_syntax_check.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+################################################################################
+### Tool to check for PHP Syntax errors
+### Usage: doc/php_syntax_check [file or directory, defaults to whole egrouware]
+### Will output all PHP Fatal, Parse erros and also Deprecated incl. filename
+### Exit-status: 0 on no error, but maybe Deprecated warnings, 1 on error
+################################################################################
+
+cd `dirname $0`
+cd ..
+
+find ${@-.} -name '*.php' -exec php -l {} \; 2>&1 | \
+	#grep -v 'No syntax errors detected in' | \
+	grep '^PHP' | \
+	perl -pe 'END { exit $status } $status=1 if /^PHP (Fatal|Parse error)/;'