我有这样的刺痛
Date,Impressions,Clicks,CTR,Orders,Orders/Click,EPC,Sales,Avg. Order,Baseline Commissions,Adjusted Commissions,Actual Commissions 01/03/2013,0,1,0,0,0,0,0,0,0,0,0 01/04/2013,0,1,0,0,0,0,0,0,0,0,0 01/05/2013,0,4,0,0,0,0,0,0,0,0,0
我试图在这样的字符串中的每个“日期”之前附加逗号 ,01/03/2013
我正在使用此代码,请帮助我添加此代码以获得以上输出
$pattern = '/[0-9]{2}\/[0-9]{2}\/[0-9]{4}/';
$replacement = ',';
$contents =preg_replace($pattern, $replacement, $contents);