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@ 2016-11-04T17:44:00Z

<?php
$ascii = 32;
while ($ascii < 256) {
    $ascii ++;
    echo chr($ascii);
}
echo strlen('!"#$%&\'()*+,-./0123456789:;<=>?@');

Output
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chr: documentation ( source)

preferences:dark modelive preview

70.69 ms | 402 KiB | 5 Q