[PHP知识库]PHP foreach如何判断是数组最后一个元素

一.计数器

$list = array('a','b','c');
$count = 0;
foreach ($list as $c_temp) {
	$count++;
	if ($count == count($list) - 1) {
		//最后一个...
	} else {
		//...
	}
}

二.判断key

$list = array('a','b','c');
foreach ($list as $key -> $value) {
	if ($key == count($list) - 1) {
		//最后一个...
	} else {
		//...
	}
}

三.判断value

$list = array('a','b','c');
foreach ($list as $key -> $value) {
	if ($value != end($list)) {
		//...
	} else {
		//最后一个...
	}
}

四.最后一个和其他元素分开处理

$list = array('a','b','c');
$last = array_pop($list);
foreach ($list as $value) {
	operate($value);
}
special_operate($last);//最后一个...

参考文献
https://www.cnblogs.com/kenshinobiy/p/4387038.html
https://www.zhihu.com/question/20158667

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