Partial revert "Bump minimum version to PHP 7.1"

This reverts commit 2941ff6.

Signed-off-by: William Desportes <williamdes@wdes.fr>

Author: williamdes

.travis.yml

@@ -3,9 +3,16 @@ language: php
 dist: trusty
 
 php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - 7.0
   - 7.1
   - 7.2
   - 7.3
+  - hhvm-3.12
+  - hhvm-3.18
+  - hhvm-3.24
   - nightly
 
 matrix:
@@ -17,10 +24,13 @@ matrix:
       env: DOCS=yes
     - php: 7.1
       env: REQUIRE="phpmyadmin/motranslator:^3.0"
+    - dist: precise
+      php: 5.3
 
 sudo: false
 
 install:
+  - if [ $(php -r "echo PHP_MAJOR_VERSION;") -lt 7 ] ; then sed -i '/sami/D' composer.json ; fi
   - if [ -n "$REQUIRE" ] ; then composer require "$REQUIRE" ; fi
   - composer install
 

composer.json

@@ -16,13 +16,13 @@
         "source": "https://github.com/phpmyadmin/sql-parser"
     },
     "require": {
-        "php": "^7.1",
+        "php": ">=5.3.0",
         "symfony/polyfill-mbstring": "^1.3"
     },
     "require-dev": {
         "sami/sami": "^4.0",
         "phpunit/php-code-coverage": "*",
-        "phpunit/phpunit": "^7.4",
+        "phpunit/phpunit": "~4.8 || ~5.7 || ~6.5",
         "phpmyadmin/coding-standard": "^1.0"
     },
     "conflict": {

phpunit.xml.dist

@@ -9,7 +9,8 @@
          convertNoticesToExceptions="true"
          convertWarningsToExceptions="true"
          processIsolation="false"
-         stopOnFailure="false">
+         stopOnFailure="false"
+         syntaxCheck="false">
     <logging>
         <log type="coverage-clover" target="coverage.xml" />
     </logging>