按顺序拆分字符串，如3x2x1

Question

（PHP）如何将字符串拆分为以逗号分隔的多个字符串，

就像我有一个字符串"Hello my neighbor"，

然后在拆分过程之后，它应该是

("Hello my neighbor","Hello my","Hello neighbor","my neighbor","Hello","my","neighbor")

Answer 1

试试这个：

<?php
$string = "Hello my neighbor";
$str = explode(" ",$string);
$newArray = [];
$newArray[] = $string;
for($i = 0; $i<count($str); $i++) {
	if($i <= 1) { 
		$newArray[] = $str[$i]." ".$str[$i+1];
		if($i != 0) {
			$newArray[] = $str[$i-1]." ".$str[$i+1];
		}
	}
	$newArray[] = $str[$i];
}

echo "<pre>";
print_r($newArray);
echo "</pre>";