+ // Check if PHP version is good enough.
+ $required_version = '5.2.1'; // Something in TCPDF library does not work below this one.
+ if (version_compare(phpversion(), $required_version, '>=')) {
+ echo('PHP version: '.phpversion().', good enough.<br>');
+ } else {
+ echo('<font color="red">Error: PHP version is not high enough: '.phpversion().'. Required: '.$required_version.'.</font><br>');
+ }
+