realpath関数の相対パス取得版 - Qiitafunction relativepath($dst) { switch (false) { case $src = getcwd(): case $dst = realpath($dst): case $src = explode(DIRECTORY_SEPARATOR, $src): case $dst = explode(DIRECTORY_SEPARATOR, $dst): case $src[0] === $dst[0]: return false; } $cmp = DIRECTORY_SEPARATOR === '\\' ? 'strcasecmp' : 'strcmp' ; for ( $i = 0; isset($src[$i], $dst[$i]) && !$cmp($src[$i], $dst[$i]); ++$i ); return implode( DIRECTO
