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PHP输出两个数字中间有多少个回文数的方法_PHP

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Release: 2016-05-31 11:45:42
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本文实例讲述了PHP输出两个数字中间有多少个回文数的方法。分享给大家供大家参考。具体分析如下:

"回文数"是一种数字。如:98789, 这个数字正读是98789,倒读也是98789,正读倒读一样,所以这个数字就是回文数。

<&#63;php
 for($i=10;$i<100;$i++){
    $len=strlen($i);
    $l=1;
    $k=intval($len)/2+1;
   for($j=0;$j<$k;$j++){
    if (substr($i,$j,1)!=substr($i,$len-$j-1,1))
     $l=0;
     break;
 }
if ($l==1)
echo $i.'<br>';
}
&#63;>
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希望本文所述对大家的php程序设计有所帮助。

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