方法一:
$str = " www.wdphp.com ";
$var = trim($str);
$len = strlen($var)-1;
echo $var[$len];
方法二:
$str = "www.wdphp.com";
echo substr($str, -1);
方法一:
$str = " www.wdphp.com ";
$var = trim($str);
$len = strlen($var)-1;
echo $var[$len];
方法二:
$str = "www.wdphp.com";
echo substr($str, -1);
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