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<form action="15.php" method="post" name="form1">
<input name="zjtxt" type="text" size="50" maxlength="100">
<input name="buttom" type="submit" value="Ìá½»">
</form>
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<?php
//µÚÒ»²½:³õʼ»¯ÖÖ×Ó
$seedarray =microtime();
$seedstr =split(" ",$seedarray,5);
$seed =$seedstr[0]*10000;

//µÚ¶þ²½:ʹÓÃÖÖ×Ó³õʼ»¯Ëæ»úÊý·¢ÉúÆ÷
srand($seed);

//µÚÈý²½:Éú³ÉÖ¸¶¨·¶Î§ÄÚµÄËæ»úÊý
$random =rand(0,100); 
$zj=$_POST[zjtxt]
if($zj == $random)
{
  echo "i i i";
}
else{
  echo "aaa";
}
?>

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$zj=$_POST[zjtxt] ;

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PHP code:

$zj=$_POST[zjtxt];




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phpʱ¼äÕýÔòÎÊÌâ - PHP / »ù´¡±à³Ì

PHP code:

$date = '2009-12-25';
$ptn = '/([\d]{4})[- \/](0?[\d]|1[0-2])[-\/ ](0?[\d]|[1-2][\d]|3[0-1])/';
if (preg_match($ptn,$date,$out))
{
print_r($out);exit();
}
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$a = 100;
$b = $a;
$a = $a + 10;
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