while循環裏面for循環沒有顯示所有結果，但只有1

Question

我有這兩個代碼應該做同樣的事情，但回聲是完全不同的，我不知道爲什麼。 1RST代碼

<?php 
    $runs = 10000; 

    $start = microtime(true); 
    for ($x = 0; $x < $runs; $x++) { 
     for($i=1;$i<1001;$i++) echo $i%15?$i%5?$i%3?$i:'koukou':'roukou':'koukouroukou'," "; 
    } 
    $end = microtime(true); 
    $elapsed = number_format($end - $start, 4); 
    $one = number_format(($end - $start)/500, 7); 
    echo "$runs runs in $elapsed seconds, average of $one seconds per call"; 
?> 

第二碼

<?php 
    $runs = 10000; 

    $start = microtime(true); 
    for ($x = 0; $x < $runs; $x++) { 
     while(++$i<1001)echo$i%15?$i%5?$i%3?$i:'koukou':'roukou':'koukouroukou'," "; 
    } 
    $end = microtime(true); 
    $elapsed = number_format($end - $start, 4); 
    $one = number_format(($end - $start)/500, 7); 
    echo "$runs runs in $elapsed seconds, average of $one seconds per call"; 
?> 

爲什麼我得到不同的結果回聲？

Answer 1

for ($x = 0; $x < $runs; $x++) { 
     while(++$i<1001)echo$i%15?$i%5?$i%3?$i:'koukou':'roukou':'koukouroukou'," "; 
} 

應該

for ($x = 0; $x < $runs; $x++) { 
    $i=0; 
     while(++$i<1001)echo$i%15?$i%5?$i%3?$i:'koukou':'roukou':'koukouroukou'," "; 
}