ik有一个html表单,我可以选择一些选项。我想写这些值逗号分隔到我的数据库。这是我的代码不写空数组字段
$genretotal = $_POST['genre'];
$genre0 = $genretotal[0];
$genre1 = $genretotal[1];
$genre2 = $genretotal[2];
$genre3 = $genretotal[3];
$genre4 = $genretotal[4];
$genre5 = $genretotal[5];
$genre6 = $genretotal[6];
$genre7 = $genretotal[7];
$genre = $genre0 . "," . $genre1 . "," . $genre2 . "," . $genre3 . "," . $genre4 . "," . $genre5 . "," . $genre6 . "," . $genre7;
我该如何忽略空值?
为什么不这样做'$流派=破灭( '',array_filter( $ _ POST [ '风格']));'? – MisterBla
为什么不像foreach一样使用if语句或两个 – Class