PHP删除指定字符。该如何解决

PHP删除指定字符。

PHP code

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$d = array(
  0 => array(
    'a' => string 'Days_3' (length=6)
    'b' => string '3 Days' (length=6)
  )
  1 => array(
    'a' => string 'Days_7' (length=6)
    'b' => string '7 Days' (length=6)
  )
  2 => array(
    'a' => string 'Days_14' (length=7)
    'b' => string '14 Days' (length=7)
  )
  3 => array(
    'a' => string 'Days_30' (length=7)
    'b' => string '30 Days' (length=7)
  )
  4 => array(
    'a' => string 'Days_60' (length=7)
    'b' => string '60 Days' (length=7)
  ));
foreach($d as $v)
{
    echo ltrim($v['a'],"Days_").",";
}

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PHP code

$ch = '';
foreach($d as $v)
{
    echo $ch . ltrim($v['a'],"Days_");
    $ch = ',';
}
<br><font color="#e78608">------解决方案--------------------</font><br>substr($str,0,-1)或者放入数组中。再用implode连接 <div class="clear"></div>

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