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<?php $input = 'tacocat'; $code = ''; var_dump((function() { return 1; })()); for ($i = 0; isset($input[$i]); $i++) { $code .= $code ? '.' : ''; $code .= sprintf('$input[(function() use ($input) { for ($l = 0; isset($input[$l]); $l++) {} return $l - 1; })() - %u]', $i); } //for ($i = strlen($input) - 1; $i >= 0; $i--) { // $code .= ($code ? '.' : '') . sprintf('$input[%s]', $i); //} $code = sprintf('return %s;', $code); var_dump($code); var_dump(eval($code));
Output for git.master, git.master_jit, rfc.property-hooks
int(1) string(707) "return $input[(function() use ($input) { for ($l = 0; isset($input[$l]); $l++) {} return $l - 1; })() - 0].$input[(function() use ($input) { for ($l = 0; isset($input[$l]); $l++) {} return $l - 1; })() - 1].$input[(function() use ($input) { for ($l = 0; isset($input[$l]); $l++) {} return $l - 1; })() - 2].$input[(function() use ($input) { for ($l = 0; isset($input[$l]); $l++) {} return $l - 1; })() - 3].$input[(function() use ($input) { for ($l = 0; isset($input[$l]); $l++) {} return $l - 1; })() - 4].$input[(function() use ($input) { for ($l = 0; isset($input[$l]); $l++) {} return $l - 1; })() - 5].$input[(function() use ($input) { for ($l = 0; isset($input[$l]); $l++) {} return $l - 1; })() - 6];" string(7) "tacocat"

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