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添加 0001.两数之和.md php版本

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Lines changed: 17 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -187,7 +187,23 @@ var twoSum = function (nums, target) {`
`187`	`187`	`};`
`188`	`188`	```
`189`	`189`
`190`		`-`
	`190`	`+php`
	`191`	`+`
	`192`	+```php
	`193`	`+function twoSum(array $nums, int $target): array`
	`194`	`+{`
	`195`	`+ for ($i = 0; $i < count($nums);$i++) {`
	`196`	`+ // 计算剩下的数`
	`197`	`+ $residue = $target - $nums[$i];`
	`198`	`+ // 匹配的index，有则返回index，无则返回false`
	`199`	`+ $match_index = array_search($residue, $nums);`
	`200`	`+ if ($match_index !== false && $match_index != $i) {`
	`201`	`+ return array($i, $match_index);`
	`202`	`+ }`
	`203`	`+ }`
	`204`	`+ return [];`
	`205`	`+}`
	`206`	+```
`191`	`207`
`192`	`208`
`193`	`209`	`-----------------------`

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