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//php5 执行 1.php
// 1.php文件内容:
<?php
$a = pack('a51ii','ab\0cdefd2151frf2c1dfdfv2fgreewgbbt525g58922f35dvr',6,3);
var_dump($a);
$b = unpack('a51a/ib/ic',$a);
var_dump($b);
echo "\n";
$c = exec("php7 test1.php");
$d = unpack('a51a/ib/ic',$c);
var_dump($d);
?>
//test1.php 文件内容:
<?php
$a = pack('a51ii','ab\0cdefd2151frf2c1dfdfv2fgreewgbbt525g58922f35dvr',6,3);
echo $a;
?>