/**
* Makes from an array of arrays a flat array.
*
* @param array $array the arra to flatten
* @return array flattenned array
*/
function gp_array_flatten($array)
{
$res = array();
foreach ($array as $value) {
$res = array_merge($res, is_array($value) ? gp_array_flatten($value) : array($value));
}
return $res;
}
/**
* Joins paths, and takes care of slashes between them
*
* Example: gp_url_join( '/project', array( 'wp', 'dev) ) -> '/project/wp/dev'
*
* The function will keep leading and trailing slashes of the whole URL, but won't
* allow more than consecutive slash inside.
*
* @param mixed components... arbitrary number of string or path components
* @return string URL, built of all the components, separated with /
*/
function gp_url_join()
{
$components = func_get_args();
$components_in_flat_array = array_filter(gp_array_flatten($components));
$components_with_slashes = implode('/', $components_in_flat_array);
$components_without_consecutive_slashes = preg_replace('|/{2,}|', '/', $components_with_slashes);
$components_without_consecutive_slashes = str_replace(array('http:/', 'https:/'), array('http://', 'https://'), $components_without_consecutive_slashes);
return $components_without_consecutive_slashes;
}
/**
* Joins paths, and takes care of slashes between them
*
* Example: gp_url_join( '/project', array( 'wp', 'dev) ) -> '/project/wp/dev'
*
* The function will keep leading and trailing slashes of the whole URL, but won't
* allow more than consecutive slash inside.
*
* @param mixed components... arbitrary number of string or path components
* @return string URL, built of all the components, separated with /
*/
function gp_url_join()
{
$components = func_get_args();
$components_in_flat_array = array_filter(gp_array_flatten($components));
$components_with_slashes = implode('/', $components_in_flat_array);
// Make sure all instances of the final URL are returned with a proper permalink ending.
$components_with_slashes = user_trailingslashit($components_with_slashes);
$components_without_consecutive_slashes = preg_replace('|/{2,}|', '/', $components_with_slashes);
$components_without_consecutive_slashes = str_replace(array('http:/', 'https:/'), array('http://', 'https://'), $components_without_consecutive_slashes);
return $components_without_consecutive_slashes;
}
/**
* Joins paths, and takes care of slashes between them
*/
function gp_url_join()
{
$args = func_get_args();
// we need array_values() in order to make sure the indices of $args are consecutive from 0 to count()-1
$args = array_values(array_filter(gp_array_flatten($args)));
if (empty($args)) {
return '';
}
$start_slash = gp_startswith($args[0], '/') && trim($args[0], '/') != '' ? '/' : '';
$end_slash = gp_endswith($args[count($args) - 1], '/') && trim($args[count($args) - 1], '/') != '' ? '/' : '';
$args = array_map(create_function('$x', 'return trim($x, "/");'), $args);
return $start_slash . implode('/', $args) . $end_slash;
}
function gp_breadcrumb($breadcrumb = null, $args = array())
{
$defaults = array('separator' => '<span class="separator">' . _x('→', 'breadcrumb') . '</span>', 'breadcrumb-template' => '<span class="breadcrumb">{separator}{breadcrumb}</span>');
$args = array_merge($defaults, $args);
if (!is_null($breadcrumb)) {
$breadcrumb = gp_array_flatten($breadcrumb);
$breadcrumb_string = implode($args['separator'], array_filter($breadcrumb));
$whole_breadcrumb = str_replace('{separator}', $args['separator'], $args['breadcrumb-template']);
$whole_breadcrumb = str_replace('{breadcrumb}', $breadcrumb_string, $whole_breadcrumb);
add_filter('gp_breadcrumb', function () use($whole_breadcrumb) {
return $whole_breadcrumb;
}, 5);
} else {
return apply_filters('gp_breadcrumb', '');
}
}
function test_gp_array_flatten()
{
$this->assertEquals(array(), gp_array_flatten(array()));
$this->assertEquals(array(1, 2, 3), gp_array_flatten(array(1, array(2, 3))));
$this->assertEquals(array(1, 2, 3, 4, 5, 6, 7), gp_array_flatten(array(1, array(2, array(3, 4), 5), 6, array(7))));
}
function gp_breadcrumb($breadcrumb = null, $args = array())
{
if ($breadcrumb) {
$breadcrumb = gp_array_flatten($breadcrumb);
add_filter('gp_breadcrumb_items', function ($breadcrumbs) use($breadcrumb) {
return array_merge($breadcrumbs, $breadcrumb);
}, 1);
} else {
$breadcrumbs = apply_filters('gp_breadcrumb_items', array());
if ($breadcrumbs) {
$defaults = array('before' => '<li>', 'after' => '</li>', 'breadcrumb-template' => '<ul class="breadcrumb">{breadcrumb}</ul>');
$args = array_merge($defaults, $args);
$whole_breadcrumb = '';
foreach ($breadcrumbs as $breadcrumb) {
$whole_breadcrumb .= $args['before'] . $breadcrumb . $args['after'];
}
$whole_breadcrumb = str_replace('{breadcrumb}', $whole_breadcrumb, $args['breadcrumb-template']);
return apply_filters('gp_breadcrumb', $whole_breadcrumb);
}
}
}
function gp_breadcrumb($breadcrumb = null, $args = array())
{
if ($breadcrumb) {
$breadcrumb = gp_array_flatten($breadcrumb);
add_filter('gp_breadcrumb_items', function ($breadcrumbs) use($breadcrumb) {
return array_merge($breadcrumbs, $breadcrumb);
}, 1);
} else {
/**
* Filter the list of breadcrumb navigation items.
*
* @since 1.0.0
*
* @param array $breadcrumb_items Breadcrumb items as HTML string.
*/
$breadcrumbs = apply_filters('gp_breadcrumb_items', array());
if ($breadcrumbs) {
$defaults = array('before' => '<li>', 'after' => '</li>', 'breadcrumb-template' => '<ul class="breadcrumb">{breadcrumb}</ul>');
$args = array_merge($defaults, $args);
$whole_breadcrumb = '';
foreach ($breadcrumbs as $breadcrumb) {
$whole_breadcrumb .= $args['before'] . $breadcrumb . $args['after'];
}
$whole_breadcrumb = str_replace('{breadcrumb}', $whole_breadcrumb, $args['breadcrumb-template']);
/**
* Filter the breadcrumb HTML output.
*
* @since 1.0.0
*
* @param string $whole_breadcrumb Breadcrumb HTML.
*/
return apply_filters('gp_breadcrumb', $whole_breadcrumb);
}
}
}
