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Copy patharray.php
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107 lines (95 loc) · 2.61 KB
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<?php
if( !function_exists('array_flatten') ) {
/**
* Given an array, find all the values recursively.
*
* @param array $array The Array to be Flattened
* @param bool $allow_duplicates Should the array allow duplicates
* @return array The resulting array or NULL on failure
*/
function array_flatten( array $array, $allow_duplicates = false ) {
$it = new RecursiveIteratorIterator(new RecursiveArrayIterator($array));
$final = array();
foreach( $it as $v ) {
if( $allow_duplicates ) {
$final[] = $v;
} else {
$final[$v] = $v;
}
}
return $final;
}
}
if( !function_exists('array_blend') ) {
/**
* Given an array of arrays, merges the array's children together.
*
* @param array $arrays An array of arrays.
* @param array|null $keys The merged array.
* @return array The resulting blended array
*/
function array_blend( array $arrays, array $keys = null ) {
$out = array();
foreach( $arrays as $key => $array ) {
if( is_array($array) && (is_null($keys) || (in_array($key, $keys))) ) {
foreach( $array as $value ) {
$out[] = $value;
}
}
}
return $out;
}
}
if( !function_exists('array_key_array') ) {
/**
* Given an array of similarly keyed arrays, returns an array of only the values of the key.
*
* @param array $arrays An array of similarly keyed arrays
* @param int|string $key The desired key
* @return array The flattened array
*/
function array_key_array( array $arrays, $key ) {
$out = array();
foreach( $arrays as $i => $array ) {
$out[$i] = $array[$key];
}
return $out;
}
}
if( !function_exists('array_keys_array') ) {
/**
* Given an array of similarly keyed arrays, returns an array of only the selected keys.
*
* @param array $arrays An array of similarly keyed arrays
* @param array|int|string $keys The key or array of keys to return
* @return array The array of arrays with just the selected keys
*/
function array_keys_array( array $arrays, $keys ) {
$keys = (array)$keys;
$out = array();
foreach( $arrays as $i => $array ) {
foreach( $keys as $index ) {
$out[$i][$index] = $array[$index];
}
}
return $out;
}
}
if( !function_exists('array_key_refill') ) {
/**
* Given a keyed array, fills any missing values.
*
* @param array $array A Keyed array
* @param array $keys The keys that must exist
* @param mixed $fill The desired value to fill with
* @return array
*/
function array_key_refill( array $array, array $keys, $fill = array() ) {
foreach( $keys as $key ) {
if( !isset($array[$key]) ) {
$array[$key] = $fill;
}
}
return $array;
}
}