php函數(shù)serialize()：
這個(gè)函數(shù)作用就是序列化數(shù)據(jù)，返回一個(gè)可存儲(chǔ)的字符串，該函數(shù)有利于存儲(chǔ)或傳遞PHP的值，同時(shí)不丟失其類型和結(jié)構(gòu)。所以我們?cè)赾ms數(shù)據(jù)庫(kù)里面經(jīng)?？吹竭@樣的結(jié)構(gòu)。
一般，我們將復(fù)雜或者數(shù)據(jù)量多而沒(méi)有必要分開(kāi)存儲(chǔ)的數(shù)據(jù)封裝成一個(gè)多維數(shù)組通過(guò)serialize()轉(zhuǎn)成字符串，然后存進(jìn)數(shù)據(jù)庫(kù)，需要的時(shí)候再拿出來(lái)轉(zhuǎn)成數(shù)組再用，而拿出了轉(zhuǎn)成數(shù)組用的就是php的unserialize()，前面多了一個(gè)un嘛。直接上例子:
$a=array("周","滿","和","個(gè)人","博客","m.survivalescaperooms.com","周滿和","個(gè)人博客");$b=serialize($a);print_r($b);echo "<br/>";$c=unserialize($b);print_r($c); 輸出結(jié)果是:
//經(jīng)過(guò)serialize序列化之后得到的數(shù)據(jù)，也是存這個(gè)進(jìn)數(shù)據(jù)庫(kù)a:8:{i:0;s:3:"周";i:1;s:3:"滿";i:2;s:3:"和";i:3;s:6:"個(gè)人";i:4;s:6:"博客";i:5;s:20:"m.survivalescaperooms.com";i:6;s:9:"周滿和";i:7;s:12:"個(gè)人博客";} //經(jīng)過(guò)unserialize()反序列化得到的數(shù)據(jù)，和之前的$a數(shù)組結(jié)構(gòu)一樣吧Array ( [0] => 周 [1] => 滿 [2] => 和 [3] => 個(gè)人 [4] => 博客 [5] => m.survivalescaperooms.com [6] => 周滿和 [7] => 個(gè)人博客 ) 在上一個(gè)復(fù)雜一點(diǎn)的二維數(shù)組的例子:
$a1=array( 'name'=>array("周","滿",'和'), 'name_weburl'=>array("周滿和","m.survivalescaperooms.com"), 'all'=>array('周滿和個(gè)人博客'=>'m.survivalescaperooms.com'));$b1=serialize($a1);print_r($b1);echo "<br/>";$c1=unserialize($b1); print_r($c1); 輸出結(jié)果是:
//經(jīng)過(guò)serialize序列化之后得到的數(shù)據(jù)，也是存這個(gè)進(jìn)數(shù)據(jù)庫(kù)a:3:{s:4:"name";a:3:{i:0;s:3:"周";i:1;s:3:"滿";i:2;s:3:"和";}s:11:"name_weburl";a:2:{i:0;s:9:"周滿和";i:1;s:20:"m.survivalescaperooms.com";}s:3:"all";a:1:{s:21:"周滿和個(gè)人博客";s:20:"m.survivalescaperooms.com";}} //經(jīng)過(guò)unserialize()反序列化得到的數(shù)據(jù)，和之前的$a數(shù)組結(jié)構(gòu)一樣吧Array ( [name] => Array ( [0] => 周 [1] => 滿 [2] => 和 ) [name_weburl] => Array ( [0] => 周滿和 [1] => m.survivalescaperooms.com ) [all] => Array ( [周滿和個(gè)人博客] => m.survivalescaperooms.com ) ) 
