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<?php
$real_num=3.1e9;
echo $real_num;
echo (int)$real_num; //Êä³öÒ»¸ö²»È·¶¨µÄÖµ,ÒòΪÒç³öµÄ²¿·ÖÒѾ¶ªÊ§¡£
?>
<?php
$real_num=3.1e9;
echo $real_num;
echo (int)$real_num; //Êä³öÒ»¸ö²»È·¶¨µÄÖµ,ÒòΪÒç³öµÄ²¿·ÖÒѾ¶ªÊ§¡£
?>
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<?php
$number=intval("5.6abc"); //5
$number=(float)"+5.6abc"; //5.6
$number=floatval("-1.2e3f4g5"); //-1.2e3
$result="12.3xy45"-6; //6.3
$result="xy1234"/5; //0
$result="1.2.3.4"*5; //6
$result=1+"-1.3e3"; //-1299
?>
<?php
$number=intval("5.6abc"); //5
$number=(float)"+5.6abc"; //5.6
$number=floatval("-1.2e3f4g5"); //-1.2e3
$result="12.3xy45"-6; //6.3
$result="xy1234"/5; //0
$result="1.2.3.4"*5; //6
$result=1+"-1.3e3"; //-1299
?>
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class lamp
{
public function __construct()
{
}
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{
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}
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