题解 | #计算某字符出现次数#
计算某字符出现次数
https://www.nowcoder.com/practice/a35ce98431874e3a820dbe4b2d0508b1
<?php $str = strtolower(trim(fgets(STDIN))); $char = strtolower(trim(fgets(STDIN))); //echo substr_count($str,$char); $len = strlen($str); for($i=0,$j=0;$i<$len;$i++){ if($str[$i] == $char){ $j++; } }; echo $j;