爆破
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web22
web23
<?php
error_reporting(0);
$string = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
for ($i1 = 0; $i1 < 62; $i1++) {
for ($i2 = 0; $i2 < 62; $i2++) {
$exp = $string[$i1] . $string[$i2];
$token = md5($exp);
if (substr($token, 1, 1) === substr($token, 14, 1) && substr($token, 14, 1) === substr($token, 17, 1)) {
if ((intval(substr($token, 1, 1)) + intval(substr($token, 14, 1)) + substr($token, 17, 1)) / substr($token, 1, 1) === intval(substr($token, 31, 1))) {
echo $exp . "\n";
echo 'flag';
}
}
}
}web24
web25
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