php去掉字串最後一個逗號的方法：使用函數rtrim過濾字串尾部，程式碼為【$trimmed = "\t\tThese are a few words :) .."$str = '13, 3';echo rtrim($str, ',')】。
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php去掉字串最後一個逗號的方法：
首先分別解釋下,str_replace咯.
$str = '123,333,234,'; echo rtrim($str, ','); rtrim实例代码2
<?php $text = "\t\tThese are a few words :) ... "; $trimmed = rtrim($text); // $trimmed = "\t\tThese are a few words :) ..." $trimmed = rtrim($text, " \t."); // $trimmed = "\t\tThese are a few words :)" $clean = rtrim($binary, "\x00..\x1F"); // trim the ASCII control characters at the end of $binary // (from 0 to 31 inclusive) ?>
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