Commit 76314a3

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	`1`	`+<?php`
	`2`	`+class Solution`
	`3`	`+{`
	`4`	`+ /**`
	`5`	`+ * @param Integer[][] $nums1`
	`6`	`+ * @param Integer[][] $nums2`
	`7`	`+ * @return Integer[][]`
	`8`	`+ */`
	`9`	`+ public function mergeArrays($nums1, $nums2)`
	`10`	`+ {`
	`11`	`+ $map = [];`
	`12`	`+`
	`13`	`+ foreach ($nums1 as $pair) {`
	`14`	`+ $id = $pair[0];`
	`15`	`+ $value = $pair[1];`
	`16`	`+ $map[$id] = ($map[$id] ?? 0) + $value;`
	`17`	`+ }`
	`18`	`+`
	`19`	`+ foreach ($nums2 as $pair) {`
	`20`	`+ $id = $pair[0];`
	`21`	`+ $value = $pair[1];`
	`22`	`+ $map[$id] = ($map[$id] ?? 0) + $value;`
	`23`	`+ }`
	`24`	`+`
	`25`	`+ ksort($map);`
	`26`	`+`
	`27`	`+ $result = [];`
	`28`	`+ foreach ($map as $id => $value) {`
	`29`	`+ $result[] = [$id, $value];`
	`30`	`+ }`
	`31`	`+`
	`32`	`+ return $result;`
	`33`	`+ }`
	`34`	`+}`

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