<?php
$string = '今天 太阳 很大,我们 都没 出去,中午 我们 吃饭';
$string_arr = explode(",", $string );
foreach($string_arr as $val){
// echo $val ."<br>";
$val1 = explode(" ", $val );
/* foreach($val1 as $key=>$v){
//echo $k ."<br>";
$k = $v ."<br>";
}*/
for($i=0;$i<count($val1);++$i){
$key = $val1[0];
$v = $val1[1];
$dv = $val1[2];
echo "k:$key<br />";
echo "v:$v<br />";
echo "dv:$dv<br />";
}
}