echo version_compare(PHP_VERSION,’5.0.0′); if our php version is greater than ‘5.0.0’ will print 1.
echo version_compare(PHP_VERSION,’7.0.0′); if our php version is greater than ‘7.0.0’ will print 1.
so,
if(version_compare(PHP_VERSION,’5.0.0′)>=0){
echo “php version is greater or equal to 5.0.0 ”
}