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@ 2015-01-27T19:24:29Z

<?php

$input = 'tacocat';
$code = '';

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
Performance
VLD
References
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var_dump: documentation ( source)
sprintf: documentation ( source)

preferences:dark modelive preview

48.41 ms | 402 KiB | 5 Q