<?php $a = 15; $fl = 3.14; $boo = true; $str = "stroka"; $boo = $boo ? 'True' : 'False'; $mas = array(); $mas[0] = 'echo "$a $fl $boo $str ";'; preg_match_all('/\$\K[^\s]+/', $mas[0], $matches); echo join(' ', array_values(compact($matches[0])));
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