Running arc lint on the following code produces a syntax error:
<?php echo $x * 2 . '%';
Specifically, the following fix with be applied:
<?php -echo $x * 2 . '%'; +echo $x * 2.'%';
This change introduces a syntax error:
> php -l test.php PHP Parse error: syntax error, unexpected ''%'' (T_CONSTANT_ENCAPSED_STRING), expecting ',' or ';' in test.php on line 3 Errors parsing test.php