数组处理，计算ng数量,该如何处理_PHP

数组处理，计算ng数量

本帖最后由 lazygc520 于 2015-05-12 22:26:04 编辑


array(6) {
  [0]=>
  string(62) "../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7020.csv"
  [1]=>
  string(64) "../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7020_1.csv"
  [2]=>
  string(64) "../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7020_2.csv"
  [3]=>
  string(64) "../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7020_3.csv"
  [4]=>
  string(64) "../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7020_4.csv"
  [5]=>
  string(65) "../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7020_NG.csv"
}

已知数组a的形式，如果把7020开头的文件看作一个文件，求得这样的结果:ts407,bed410-500a1,5306,ng对应数量为1.这要怎么求？
------解决思路----------------------


$arr=array(
	"../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7020.csv",
	"../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7020_1.csv",
	"../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7020_2.csv",
	"../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7020_3.csv",
	"../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7020_4.csv",
	"../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7020_NG.csv",
	"../../dat/DIG/TestFunction/TS407/BED410-500A1/5306/NG/7021_NG.csv",//添加测试
);
foreach($arr as $v){
	$tmp=explode('/',$v);
	$lastfile=array_pop($tmp);
	preg_match('/^(\d+)(\.
------解决思路----------------------
\_)/',$lastfile,$m);
	$arr_file[]=$m[1];
}
$count=count(array_unique($arr_file));
echo $count;//2