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run code in 300+ PHP versions simultaneously
<?php $source = <<<SOURCEND This is a test {% block hello %} This is a test This is a {{ \$test }} {% end block %} {{ block('hello') }} {% for \$post in \$posts %} {% end %} SOURCEND; function microtwig_compile($source){ function microtwig_parsecmd($cmd){ static $stack = array(); $fragments = preg_split('/\s+/',$cmd); $cmd = array_shift($fragments); switch($cmd){ case 'block': return 'function block_'.$fragments[0].'(){'; break; case 'if': $stack[] = 'if'; return 'if('.$fragments[2].' as '.$fragments[0].'):'; break; case 'for': $stack[] = 'foreach'; return 'foreach('.$fragments[2].' as '.$fragments[0].'):'; break; case 'end': switch(isset($fragments[0])?$fragments[0]:''){ case 'block': return '}'; break; default: switch($peek = array_pop($stack)){ case 'if': return 'endif;'; break; case 'foreach': return 'endforeach;'; break; } break; } break; default: break; } } $cnt=0; $fragments = array(); $source = str_replace(array('{{','}}'),array('<?=','?>'),$source); foreach(explode('{%',$source) as $tmp) { foreach(explode('%}',$tmp) as $item) { $fragments[] = $cnt++%2?'<?php '.microtwig_parsecmd(trim($item)).'?>':$item; } } return implode('',$fragments); } echo microtwig_compile($source);

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