"options"=>array是什么 意思
代码如下
<br /><?php<br />$var=300;<br /><br />$int_options = array(<br />"options"=>array<br /> (<br /> "min_range"=>0,<br /> "max_range"=>256<br /> )<br />);<br /><br />if(!filter_var($var, FILTER_VALIDATE_INT, $int_options))<br /> {<br /> echo("Integer is not valid");<br /> }<br />else<br /> {<br /> echo("Integer is valid");<br /> }<br />?>$int_options = array(<br /> "options"=>array<br /> (<br /> "min_range"=>0,<br /> "max_range"=>256<br /> )<br /> );
