腓添加昏迷伴duople quetes在JSON字符串

Question

我想這個代碼

foreach($comment as $cmd) 
    { 
     $dids=$cmd['qid']; 
     $json = json_encode($dids); 
    } echo($json); 

我的輸出這樣的

"1""2" 

如何添加這些字符串

我想之間的逗號我輸出"1","2"

請幫幫我

Answer 1

您需要添加逗號手動

foreach($comment as $cmd) { 
    $dids=$cmd['qid']; 
    $json = json_encode($dids) . ","; 
} 

感謝 阿米特

Answer 2

這應該做的伎倆：

<?php 
    $dids = array(); 
    foreach($comment as $cmd) { 
     $dids[]=$cmd['qid']; 
    } 
    $json = json_encode($dids); 
    echo($json); 
?> 

Answer 3

使用此代碼來代替：

foreach($comment as $cmd){ 
    $dids=$cmd['qid']; 
    $json = json_encode($dids).","; 
}echo substr($json,0,strlen($json)-1); 

Answer 4

這作品

foreach($comment as $cmd) { 
     $dids=$cmd['qid']; 
     $dids=$dids.","; 
     $json = json_encode($dids); 
    }