- function GBsubstr($string, $start, $length) {
- if(strlen($string)>$length){
- $str=null;
- $len=$start+$length;
- for($i=$start;$i if(ord(substr($string,$i,1))>0xa0){
- $str.=substr($string,$i,2);
- $i++;
- }else{
- $str.=substr($string,$i,1);
- }
- }
- return $str.'...';
- }else{
- return $string;
- }
- }
2.用PHP写出显示客户端IP与服务器IP的代码?
答: - $readcontents = fopen("http://bbs.it-home.org/index.html", "rb");
- $contents = stream_get_contents($readcontents);
- fclose($readcontents);
- echo $contents;
-
方法2:
- function getExt($url){
- $arr = parse_url($url);
-
- $file = basename($arr['path']);
- $ext = explode(".",$file);
- return $ext[1];
- }
-
答案2:
- function getExt($url) {
- $url = basename($url);
- $pos1 = strpos($url,".");
- $pos2 = strpos($url,"?");
- if(strstr($url,"?")){
- return substr($url,$pos1 + 1,$pos2 - $pos1 - 1);
- } else {
- return substr($url,$pos1);
- }
- }
19. 写一个函数，算出两个文件的相对路径?
如 $a = '/a/b/c/d/e.php';
$b = '/a/b/12/34/c.php';
计算出 $b 相对于 $a 的相对路径应该是 http://bbs.it-home.org/c/d将()添上
答: - function getRelativePath($a, $b) {
- $returnPath = array(dirname($b));
- $arrA = explode('//m.sbmmt.com/m/', $a);
- $arrB = explode('//m.sbmmt.com/m/', $returnPath[0]);
- for ($n = 1, $len = count($arrB); $n if ($arrA[$n] != $arrB[$n]) {
- break;
- }
- }
- if ($len - $n > 0) {
- $returnPath = array_merge($returnPath, array_fill(1, $len - $n, '..'));
- }
-
- $returnPath = array_merge($returnPath, array_slice($arrA, $n));
- return implode('//m.sbmmt.com/m/', $returnPath);
- }
- echo getRelativePath($a, $b);
希望以上为大家提供的php面试题，对大家有所帮助，真诚期待在您的应聘中可以用得上。 |
