Str.php
private static function replaceChar($subject, $search, $replace) {
for ($i = 0; isset($subject[$i]); $i++) {
if ($subject[$i] == $search) {
$subject[$i] = $replace;
}
}
return $subject;
}
private static function join(string $sep, array $arr) {
if (empty($arr)) {return "";}
$s = $arr[0];
$n = count($arr);
for ($i = 1; $i < $n; $i++) {
$s .= $sep.$arr[$i];
}
return $s;
}
public static function absPath($path) {
if (DIRECTORY_SEPARATOR === '/') {
$root = "/";
} else {
$path = self::replaceChar($path, DIRECTORY_SEPARATOR, '/');
$root = "";
}
$a = [];
$el = "";
$lastChar = '\0';
for ($i = 0; isset($path[$i]); $i++) {
if ($path[$i] == '.') {
if ($lastChar == '.') {
array_pop($a);
} else {
$el .= $path[$i];
}
} else if ($path[$i] == '/') {
if ($lastChar != '.' && $el) {
array_push($a, $el);
}
$el = "";
} else {
$el .= $path[$i];
}
$lastChar = $path[$i];
}
array_push($a, $el);
$path = $root.self::join(DIRECTORY_SEPARATOR, $a);
return $path;
}
windows环境 is_file 始终false, 中文名utf-8 需要转换为gb2312
iconv("UTF-8","GB2312//IGNORE",$data);
