字符串转化为数字？？？
今天遇到个比较奇怪的现象，很可能是我储备还不够吧，包含引号的数字的字符串转化为数字时出现了问题
<br />"1000","902865066306","02865066306","SIP Phone","IP Trunk","","trunk20","ON2OFF","1333230069","1333230072","1333230134","65","62","Connected"<br />
<br />$arr = '"1000","902865066306","02865066306","SIP Phone","IP Trunk","","trunk20","ON2OFF","1333230069","1333230072","1333230134","65","62","Connected"';<br />$arr = explode(',',$arr);<br />print_r($arr);<br /><br />Array<br />(<br /> [0] => "1000"<br /> [1] => "902865066306"<br /> [2] => "02865066306"<br /> [3] => "SIP Phone"<br /> [4] => "IP Trunk"<br /> [5] => ""<br /> [6] => "trunk20"<br /> [7] => "ON2OFF"<br /> [8] => "1333230069"<br /> [9] => "1333230072"<br /> [10] => "1333230134"<br /> [11] => "65"<br /> [12] => "62"<br /> [13] => "Connected"<br />)<br />
<br />echo $arr[8] + 0; //结果为0<br />
<br />$num = "1333230069";<br />echo $num+0;//1333230069<br />
<?php<br />$arr= Array<br />(0 => "1000",<br /> 1 => "902865066306",<br /> 2 => "02865066306",<br /> 3 => "SIP Phone",<br /> 4 => "IP Trunk",<br /> 5 => "",<br /> 6 => "trunk20",<br /> 7 => "ON2OFF",<br /> 8 => "1333230069",<br /> 9 => "1333230072",<br /> 10 => "1333230134",<br /> 11 => "65",<br /> 12 => "62",<br /> 13 => "Connected"<br />);<br />echo gettype($arr[8])."<br>";<br />echo $arr[8]."<br>";<br />$str1=$arr[8]+0;<br />echo gettype($str1)."<br>";<br />echo ($str1)."<br>";<br /><br />$num = "1333230069";<br />$num1=($num+0);<br />echo gettype($num)."<br>";<br />echo gettype($num1)."<br>";<br />echo $num1;<br /><br />?><br />
$arr = '"1000","902865066306","02865066306","SIP Phone","IP Trunk","","trunk20","ON2OFF","1333230069","1333230072","1333230134","65","62","Connected"';<div class="clear"></div>
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