æ¨å¥½ï¼æ¨è¿æ ·ï¼
foreach($arr as $k=>$v){
//è¿ä¸ªçæææ¯ å¾ªç¯æ°ç»$arr,æå½å循ç¯çä¸æ ï¼é®åï¼èµå¼ç»$k,å½å循ç¯çæ°ç»å
ç´ èµå¼ç»$v
//ç¶åä½ æ¹åçæ¯$vçå¼ï¼è¿å°±ç±»ä¼¼äº
// $a = 1;
// $b = $a;
// $a = 2;
// echo $b;
// ä½ æ¹åäº$açå¼ï¼ä½$bè¿æ¯åæ¥ç1ï¼
}
//æä»¥ä½ è¿ä¸ªå¯ä»¥è¿æ ·ä¿®æ¹
foreach ($ss as $k=>$v) {
if($v['two'] == "3"){
$ss[$k]['two'] = 1000;
//æè
//$v['two'] = 1000;
//$ss[$k] = $v;
}
}
print_r($ss);
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