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login_id, password, email
11, 123, tt@gmail.com


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user(login_id, password, email)

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sqlµÄ replace ÊÇʲô°¡£¬

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http://dev.mysql.com/doc/refman/5.1/en/replace.html

http://dev.mysql.com/doc/refman/5.1/en/load-data.html
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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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PHP code:
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php»ù´¡ÎÊÌâÇó½â´ð - PHP / »ù´¡±à³Ì

$a = 100;
$b = $a;
$a = $a + 10;
echo $b; Çëд³ö$bµÄֵΪ? Çë˵³öΪʲô?
ÎÒ¾õµÃ&b=100;ÒòΪ±äÁ¿Ç°Ã»ÓÐÓÃglobal £¬ËùÒÔ¾ÍËã±äÁ¿ÃûÏàͬ£¬Ò²ÊôÓÚÓë²»±äÁ¿£¬ÖµÊDz»Í¬µÄ¡£ËùÒÔ$b=$aÏ൱ÓÚ$b=100;²»ÖªµÀ¶Ô²»¶Ô ......
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