求大神帮忙,这个改怎么处理,php数组组合

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Release: 2016-06-20 12:44:10
Original
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比如我有两个数组 
A组:10,11,12,13
B组:14,15

想组合成 10|14,11|14,12|14,13|14,10|15,11|15,12|15,13|15

拜谢了 可能会发生三组 四组 比如A组 B组 C组 D组


回复讨论(解决方案)

你这是在求笛卡尔积,精华区有好几个相关讨论
这里再给个版本

$a = array(10,11,12,13);$b = array(14,15);foreach(Descartes($a, $b) as $v) $r[] = join(',', $v);echo join('|', $r);
Copy after login
Copy after login
10,14|10,15|11,14|11,15|12,14|12,15|13,14|13,15

  function Descartes($d) {	if(func_num_args() > 1) $d = func_get_args();	$r = array_pop($d);	while($d) {		$t = array();		$s = array_pop($d);		if(! is_array($s)) $s = array($s);		foreach($s as $x) {			foreach($r as $y) $t[] = array_merge(array($x), is_array($y) ? $y : array($y));		}		$r = $t;	}	return $r;  }
Copy after login
Copy after login

你这是在求笛卡尔积,精华区有好几个相关讨论
这里再给个版本

$a = array(10,11,12,13);$b = array(14,15);foreach(Descartes($a, $b) as $v) $r[] = join(',', $v);echo join('|', $r);
Copy after login
Copy after login
10,14|10,15|11,14|11,15|12,14|12,15|13,14|13,15

  function Descartes($d) {	if(func_num_args() > 1) $d = func_get_args();	$r = array_pop($d);	while($d) {		$t = array();		$s = array_pop($d);		if(! is_array($s)) $s = array($s);		foreach($s as $x) {			foreach($r as $y) $t[] = array_merge(array($x), is_array($y) ? $y : array($y));		}		$r = $t;	}	return $r;  }
Copy after login
Copy after login


谢谢版主,我等会测试下,稍后我再发布个需求,等会您再帮我看看

http://bbs.csdn.net/topics/391860657 大神再帮我看看这个

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