/**
* An array-merging function to strip one or more arrays down to a single one dimension array
*/
function array_merge_deep($arr)
{
$arr = (array) $arr;
$argc = func_num_args();
if ($argc != 1) {
$argv = func_get_args();
for ($i = 1; $i < $argc; $i++) {
$arr = array_merge($arr, (array) $argv[$i]);
}
}
$temparr = array();
foreach ($arr as $key => $value) {
if (is_array($value)) {
$temparr = array_merge($temparr, array_merge_deep($value));
} else {
$temparr = array_merge($temparr, array($key => $value));
}
}
return $temparr;
}
function array_merge_deep($arrays)
{
$result = array();
foreach ($arrays as $array) {
foreach ($array as $key => $value) {
// Renumber integer keys as array_merge_recursive() does. Note that PHP
// automatically converts array keys that are integer strings (e.g., '1')
// to integers.
if (is_integer($key)) {
$result[] = $value;
} elseif (isset($result[$key]) && is_array($result[$key]) && is_array($value)) {
$result[$key] = array_merge_deep(array($result[$key], $value));
} elseif (isset($result[$key]) && is_string($result[$key])) {
$result[$key] = isset($result[$key]) ? $result[$key] . ' ' . $value : $value;
} else {
$result[$key] = $value;
}
}
}
return $result;
}
/**
* 递归地合并一个或多个数组(不同于 array_merge_recursive )
*
* @return array
*/
function array_merge_deep()
{
$a = func_get_args();
for ($i = 1; $i < count($a); $i++) {
foreach ($a[$i] as $k => $v) {
if (isset($a[0][$k])) {
if (is_array($v)) {
if (is_array($a[0][$k])) {
$a[0][$k] = array_merge_deep($a[0][$k], $v);
} else {
$v[] = $a[0][$k];
$a[0][$k] = $v;
}
} else {
$a[0][$k] = is_array($a[0][$k]) ? array_merge($a[0][$k], array($v)) : $v;
}
} else {
$a[0][$k] = $v;
}
}
}
return $a[0];
}
/**
* Merges 2 arrays recursively checking for nested arrays and merging them as well
* Can either preserve numeric indexes or reorder them depending on the value
* of $keep_numeric_index, which defaults to true
* @param array $array1 The first array to merge
* @param array $array2 The second array to merge
* @param boolean $keep_numeric_index $enclosure One character long string that determines what to ues for enclosing strings
* @return array The recursively merged arrays
*/
function array_merge_deep($array1, $array2, $keep_numeric_index = true)
{
// the first array is in the output set in every case
$ret = $array1;
// merege $ret with the remaining arrays
foreach ($array2 as $key => $value) {
if (!$keep_numeric_index && (string) $key === (string) intval($key)) {
// integer or string as integer key - append
$ret[] = $value;
} else {
// string key - megre
if (is_array($value) && isset($ret[$key])) {
// if $ret[$key] is not an array you try to merge an scalar value with an array - the result is not defined (incompatible arrays)
// in this case the call will trigger an E_USER_WARNING and the $ret[$key] will be null.
$ret[$key] = array_merge_deep($ret[$key], $value);
} else {
$ret[$key] = $value;
}
}
}
return $ret;
}
