Hadoop流式php环境变量
如何使用php在mapper中获取输入文件名?如前所述,对于php,map reduce的模板是:Hadoop流式php环境变量,php,hadoop,Php,Hadoop,如何使用php在mapper中获取输入文件名?如前所述,对于php,map reduce的模板是: 01 function map ($filename, $content) { 02 foreach (explode('', $content) as $word) { 03 collect($word, 1); 04 } 05 } 06 07 function reduce($word, $values) { 08 $numWordC
01 function map ($filename, $content) {
02 foreach (explode('', $content) as $word) {
03 collect($word, 1);
04 }
05 }
06
07 function reduce($word, $values) {
08 $numWordCount = 0;
09
10 foreach ($values as $value) {
11 $numWordCount += $value;
12 }
13
14 collect($word, $numWordCount);
现在,
$filename
的值不能是吗?我的问题不清楚吗?我真的不明白为什么我会落选。