Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

PHPÊý×麯Êýarray_push

Ïëµ½PHP²Ù×÷Êý×éʱºò£¬¸øÒ»¸öÊý×éÌí¼ÓÒ»¸öÊý×鵥Ԫʱºò¿ÉÒÔÓÐÁ½ÖÖ·½Ê½£º
1.
$arr = array();
$arr[] = '';
2.
$arr = array();
array_push($arr,'');
¸Õ×öÒ»¸ö100000´ÎµÄÑ­»·²åÈ룬½á¹û»¹ÊǵÚÒ»ÖÖÒª¿ìһЩ£¡£¨Ñ­»·²åÈëÊý×Ö£¬100000´Î£¬µÚÒ»ÖÖ0.04×óÓÒ£¬µÚ¶þÖÖ0.08Ãë×óÓÒ£©


Ïà¹ØÎĵµ£º

PHP±à³Ìˮƽ·Ö¼¶(ת)

˵¾äʵ»°,дÕâ¸öÕæ¹»ÎÞÁĵÄ.±¾À´¿´ÁËijλ´óϺµÄÀàËÆÎÄÕÂ,¸¹·ÌÁ˼¸¾äÒ²¾ÍËãÁË.µ«ÊÇ×òÌìÍíÉÏÓиö¿Í»§ÄÃ×ÅÕâÆªÎÄÕÂÎÊÎÒ: ÄãѾµÄ×Ô¼º×ö
Íâ°ü,ÄãË㼸¶ÎPHPer?Ëì¸Ð¾õÄÇÆªÎÄÕ¶ÔijЩ°ëͨ²»Í¨Ö®È˵ÄÎóµ¼Ö®Éî.ÎÞ·¨,Ö»ÓÐд´ËÎÄÕ±íÃ÷ÎÒ¶ÔPHPerµÄË®Æ½Çø·ÖµÄÁ¢³¡.
¹ØÓÚ¾ßÌåÊÕÈëˮƽ,×ܵÄÀ´ËµÒòΪÕ⼸ÄêPHPÅàѵ°àµÄ¼Ó¶à,´óÁ¿PHPÐÂÊÖ¿ ......

phpµÄsessionÓëcookieµÄÇø±ð

1¡¢Ê×ÏÈͨ¹ý´úÂëÀ´¿´¿´±íÏó£º
<?php
  session_start();
 
  if (empty($_SESSION['count'])) {
      $_SESSION['count'] = 1;
  } else {
      $_SESSION['count']++;
  }
  var_dump($_SESSION);
 
  var_ ......

php variable circular reference

 
Php Variable Circular References

Circular-references has been a long outstanding issue with PHP. They are
caused by the fact that PHP uses a reference counted memory allocation
mechanism for its internal variables. This causes problems for longer
running scripts (such as an Applicatio ......

PHPµÄÈÕÆÚʱ¼äº¯Êýdate()

ÕûÀí»î£ºPHPµÄÈÕÆÚʱ¼äº¯Êýdate()
1£¬Äê-ÔÂ-ÈÕ
echo date('Y-m-j');
2007-02-6
echo date('y-n-j');
07-2-6
´óдY±íʾÄêËÄλÊý×Ö£¬¶øÐ¡Ð´y±íʾÄêµÄÁ½Î»Êý×Ö£»
Сдm±íʾÔ·ݵÄÊý×Ö(´øÇ°µ¼)£¬¶øÐ¡Ð´nÔò±íʾ²»´øÇ°µ¼µÄÔ·ÝÊý×Ö¡£
echo date('Y-M-j');
2007-Feb-6
echo date('Y-m-d');
2007-02-06
´óдM±íʾÔÂ·ÝµÄ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ