In some cases you might want to remove or temporary hide PHP blocks located in a given string/file. Use Spiral\Tokenizer\Isolator class for such purposes.
Note, this class works thought php tokens.
Remove all php blocks in string:
public function indexAction()
{
$code = 'hello <?=$name?>';
$isolator = new Isolator();
$code = $isolator->isolatePHP($code);
dump($code);
}
Such approach useful when you want to pre-process string or view source without corrupting inner php code, to restore code which been previously isolated call method repairPHP:
public function indexAction()
{
$code = 'hello <?=$name?>';
$isolator = new Isolator();
$code = $isolator->isolatePHP($code);
//Do some manipulations with code
$code = $isolator->repairPHP($code);
dump($code);
}
You are also able to get list of all php block found in a given string and replace their values:
public function indexAction()
{
$code = 'hello <?=$name?>';
$isolator = new Isolator();
$code = $isolator->isolatePHP($code);
foreach ($isolator->getBlocks() as $id => $block) {
$isolator->setBlock($id, '<?=e($name)?>');
}
$code = $isolator->repairPHP($code);
dump($code);
}
This is helper class, it must never touch user generated data.