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ÓÃphp»ñÈ¡±¾ÖÜ,ÉÏÖÜ,±¾ÔÂ,ÉÏÔÂ,±¾¼¾¶ÈÈͮ򵀫úÂë,Ö÷ÒªÓõ½date,strtotimeºÍmktimeº¯Êý.
echo date("Ymd",strtotime("now")), "<br />";
echo date("Ymd",strtotime("-1 week Monday")), "<br />";
echo date("Ymd",strtotime("-1 week Sunday")), "<br />";
echo date("Ymd",strtotime("+0 week Monday")), "<br />";
echo date("Ymd",strtotime("+0 week Sunday")), "<br />";
//date("m") µÚ¼¸¸öÔÂ
//date("w") ±¾ÖÜÖܼ¸
//date("t") ±¾ÔÂÌìÊý
echo "<br />ÉÏÖÜ:<br />";
echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w")+1-7,date("Y"))),"<br />";
echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w")+7-7,date("Y"))),"<br />";
echo "<br>±¾ÖÜ:<br>";
echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w")+1,date("Y"))),"<br />";
echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w")+7,date("Y"))),"<br />";
echo "<br>ÉÏÔÂ:<br>";
echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m")-1,1,date("Y"))),"<br />";
echo date("Y-m-d H:i:s",mktime(23,59,59,date("m") ,0,date("Y"))),"<br />";
echo "<br>±¾ÔÂ:<br>";
echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),1,date("Y"))),"<br />";
echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("t"),date("Y"))),"<br />";
$getMonthDays = date("t",mktime(0, 0 , 0,date("n")+(date("n")-1)%3,1,date("Y")));//±¾¼¾¶Èδ×îºóÒ»ÔÂÌìÊý
echo "<br>±¾¼¾¶È:<br>";
echo date('Y-m-d H:i:s', mktime(0, 0, 0,date('n')-(date('n')-1)%3,1,date('Y'))),"<br />";
echo date('Y-m-d H:i:s', mktime(23,59,59,date('n')+(date('n')-1)%3,$getMonthDays,date('Y'))),"<br />";


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PHPº¯Êý__autoload()ºÍspl_autoload_register()

__autoload($classname){
}
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1.È¡µÃµ±Ç°ÄÚ´æÊ¹ÓôóС£ºmemory_get_usage()
2.¼ÆËãÖ´ÐÐʱ¼ä£ºmicrotime(true)
3.ÉèÖÃscriptÖ´ÐÐʱ¼äÏÞÖÆset_time_limit
4.ÉèÖÃÄÚ´æÏÞÖÆini_set("memory_limit","256M");
3.´ÓÔ¶³ÌÏÂÔØÎļþµÄÁ½¸ö·½·¨£º
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