Created
January 1, 2019 23:30
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Modified from: https://stackoverflow.com/a/2638272/1940255
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<?php | |
if (!function_exists('relative_path')) { | |
function relative_path(string $from, string $to): string { | |
// some compatibility fixes for Windows paths | |
$from = is_dir($from) ? rtrim($from, '\/') . '/' : $from; | |
$to = is_dir($to) ? rtrim($to, '\/') . '/' : $to; | |
$from = str_replace('\\', '/', $from); | |
$to = str_replace('\\', '/', $to); | |
$from = explode('/', $from); | |
$to = explode('/', $to); | |
$relPath = $to; | |
foreach ($from as $depth => $dir) { | |
// find first non-matching dir | |
if ($dir === $to[$depth]) { | |
// ignore this directory | |
array_shift($relPath); | |
continue; | |
} | |
// get number of remaining dirs to $from | |
$remaining = count($from) - $depth; | |
if ($remaining > 1) { | |
// add traversals up to first matching dir | |
$padLength = (count($relPath) + $remaining - 1) * -1; | |
$relPath = array_pad($relPath, $padLength, '..'); | |
break; | |
} | |
$relPath[0] = './' . $relPath[0]; | |
} | |
return implode('/', $relPath); | |
} | |
} |
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