php strftime 的問題

?今天在使用slimstat的時候發現，當在fitler中選擇某一天當情況下，??Summary的title就變成了“compare with%s”,應該出現的2個日期全部見了。

還以為是slimstat的bug。debug了一下發現，應該傳遞的參數都正常。只是返回的格式化日期為空白。slimstat格式化日期的方法為：????????gmstrftime("%a %e %b %Y", gmmktime(12, 0, 0, $mo, $dy, $yr));debug這個方法才知道，只要有%e這個參數，gmstrftime就返回了Null 字元串。查看了php manual看到下面那段話，

Not all conversion specifiers may be supported by your C library, in which case they will not be supported by PHP's strftime(). Additionally, not all platforms support negative timestamps, so your date range may be limited to no earlier than the Unix epoch. This means that %e, %T, %R and, %D (and possibly others) - as well as dates prior to Jan 1, 1970 - will not work on Windows, some Linux distributions, and a few other operating systems. For Windows systems, a complete overview of supported conversion specifiers can be found at » MSDN

看樣子php manual還是需要好好的研究研究。

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