<?php
/**
*鏁扮粍鎬ц兘嫻嬭瘯
*for寰幆閬嶅巻嫻嬭瘯鍑芥暟鏈夋ц兘褰卞搷鎵浠ユ病鏈夌敤錛屼笉鍚屾椂璋冪敤2涓嚱鏁頒篃鏄媴蹇冨叿鏈夊獎(jiǎng)鍝嶏紝涓嶅皝瑁呭悓鏃舵墽琛屼唬鐮佹槸鍏鋒湁褰卞搷鐨?br /> *嫻嬭瘯鏄洿鏀?count鍙傛暟錛堜粠10~100000 鏁村彇閫掑錛夊拰璋冪敤鏂規(guī)硶鎵嬪姩鍒鋒柊錛岃褰曟椂闂翠負(fù)騫沖潎澶ф鏃墮棿
**/
$count = 10;
arrayTest01($count);
function arrayTest01($count) {
$arr = array ();
$time = microtime(true);
for ($i = 0; $i < $count; $i++) {
$array[] = $i;
}
echo (microtime(true) - $time);
}
function arrayTest02($count) {
$arr = array ();
$time = microtime(true);
for ($i = 0; $i < $count; $i++) {
array_push($arr, $i);
}
echo (microtime(true) - $time);
}
?>
/**
*鏁扮粍鎬ц兘嫻嬭瘯
*for寰幆閬嶅巻嫻嬭瘯鍑芥暟鏈夋ц兘褰卞搷鎵浠ユ病鏈夌敤錛屼笉鍚屾椂璋冪敤2涓嚱鏁頒篃鏄媴蹇冨叿鏈夊獎(jiǎng)鍝嶏紝涓嶅皝瑁呭悓鏃舵墽琛屼唬鐮佹槸鍏鋒湁褰卞搷鐨?br /> *嫻嬭瘯鏄洿鏀?count鍙傛暟錛堜粠10~100000 鏁村彇閫掑錛夊拰璋冪敤鏂規(guī)硶鎵嬪姩鍒鋒柊錛岃褰曟椂闂翠負(fù)騫沖潎澶ф鏃墮棿
**/
$count = 10;
arrayTest01($count);
function arrayTest01($count) {
$arr = array ();
$time = microtime(true);
for ($i = 0; $i < $count; $i++) {
$array[] = $i;
}
echo (microtime(true) - $time);
}
function arrayTest02($count) {
$arr = array ();
$time = microtime(true);
for ($i = 0; $i < $count; $i++) {
array_push($arr, $i);
}
echo (microtime(true) - $time);
}
?>
鏁堢巼澶ф鏄痑rray[]蹇皢榪戜竴鍊嶏紝嫻嬭瘯鐜鏄痷buntu 11 鍜?windows 7
windows php-5.2.17/ Apache2.2
times錛?count錛? 10 100 1000 10000銆銆銆 100000銆銆銆 1000000
array[] 2.31E-05 0.000104 0.000867 0.008417 0.043666 0.288323
array_push 2.79E-05 0.000181 0.001614 0.014447 0.055875 0.491052
ubuntu11.04 PHP 5.3.6/apache2.2
array[] 1.91E-05 7.70E-05 0.000726 0.007669 0.040492 鎶ラ敊
array_push 2.50E-05 1.26E-04 0.001149 0.013714 0.056978 鎶ラ敊
榪欐槸瀹樻柟緗戠珯涓婄殑璇磋緸
Note: 濡傛灉鐢?array_push() 鏉ョ粰鏁扮粍澧炲姞涓涓崟鍏冿紝榪樹笉濡傜敤 $array[] = 錛屽洜涓鴻繖鏍鋒病鏈夎皟鐢ㄥ嚱鏁扮殑棰濆璐熸媴銆?span style="white-space: pre;">
瀹樼綉閾炬帴錛?
瀹樼綉閾炬帴錛?
]]>