62 lines
1.1 KiB
PHP
62 lines
1.1 KiB
PHP
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<?php
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namespace alveolata\map;
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// require_once(DIR_ALVEOLATA . '/definitions.php');
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/**
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* @param array $map {map<string,§y>}
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* @param \Closure $transformator {function<§x,string,§y>}
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* @return array
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* @author Christian Fraß <frass@greenscale.de>
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*/
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function map/*<§x,§y>*/(
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array $map,
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\Closure $transformator
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) : array
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{
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$map_ = [];
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foreach ($map as $key => $value) {
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$value_ = $transformator($value, $key);
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$map_[$key] = $value_;
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}
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return $map_;
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}
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/**
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* @param array $pairs {list<record<key:string,value:§x>>}
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* @return array {map<string,§x>}
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* @author Christian Fraß <frass@greenscale.de>
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*/
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function from_pairs/*<§x>*/(
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array $pairs
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) : array
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{
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$map = [];
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foreach ($pairs as $pair) {
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$map[$pair['key']] = $pair['value'];
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}
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return $map;
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}
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/**
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* @param array $map {map<string,§x>}
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* @return array {list<record<key:string,value:§x>>}
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* @author Christian Fraß <frass@greenscale.de>
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*/
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function to_pairs/*<§x>*/(
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array $map
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) : array
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{
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$pairs = [];
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foreach ($map as $key => $value) {
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\array_push($pairs, ['key' => $key, 'value' => $value]);
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}
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return $pairs;
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}
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?>
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