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Home Backend Development PHP Tutorial 数组 去重 统计问题 有点难度的计算方法

数组 去重 统计问题 有点难度的计算方法

Jun 20, 2016 pm 12:57 PM




如图 有一个数组 需要去重  重组数组的格式  在线讨论


回复讨论(解决方案)

贴出由 var_export 输出的示例数组,没有讨论的基础是讨论不起来的

其实很简单,你只要按聚类键聚类就可以了

贴出由 var_export 输出的示例数组,没有讨论的基础是讨论不起来的

其实很简单,你只要按聚类键聚类就可以了

这是现在的得到数组


希望 得到下面的格式


请问版主  这种怎么去 格式化

为什么要截图呢?难道要我一个个的去打字?

有什么要求?如果只要单纯实现的话,不可以用循环吗?

<meta charset="utf-8"><?php 	$arra = array(		0 => array(			'id' => 0,			'send_mobile'=> '13267310236',			'c_content'=>'天气很热注意防暑'		),		1 => array(			'id' => 1,			'send_mobile'=> '13267310285',			'c_content'=>'天气很热注意防暑'		),		2 => array(			'id' => 2,			'send_mobile'=> '13267310126',			'c_content'=>'天气很热注意防暑'		),		3 => array(			'id' => 3,			'send_mobile'=> '13267310166',			'c_content'=>'天气防暑'		)	);	$arrb = array();		foreach ($arra as $v){		$b = $v['c_content'];		if(isset($arrb[$b])) 			$arrb[$b]['send_mobile'] .= ','.$v['send_mobile'];		$arrb[$b] = isset($arrb[$b])?$arrb[$b]:$v;	}		$arrb = array_values($arrb);	print_r($arrb);?>
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看你那个是用c_id做区分的吧,那就直接用cid做key, $arr[$cid][] = $val

提示你一下 中文可以作为数组键

foreach ($arra as $k=>$v) { $res [$v[c_content]] = $v; }
一句话ok

新建个数组b,遍历原数组a,如果遍历项中的c_content没有作为键名出现在b中,则插入一个b[c_content];否则把遍历到的send_mobile加进去,最后再把b数组整个重新键值排序一下。

<meta charset="utf-8"><?php 	$arra = array(		0 => array(			'id' => 0,			'send_mobile'=> '13267310236',			'c_content'=>'天气很热注意防暑'		),		1 => array(			'id' => 1,			'send_mobile'=> '13267310285',			'c_content'=>'天气很热注意防暑'		),		2 => array(			'id' => 2,			'send_mobile'=> '13267310126',			'c_content'=>'天气很热注意防暑'		),		3 => array(			'id' => 3,			'send_mobile'=> '13267310166',			'c_content'=>'天气防暑'		)	);	$arrb = array();		foreach ($arra as $v){		$b = $v['c_content'];		if(isset($arrb[$b])) 			$arrb[$b]['send_mobile'] .= ','.$v['send_mobile'];		$arrb[$b] = isset($arrb[$b])?$arrb[$b]:$v;	}		$arrb = array_values($arrb);	print_r($arrb);?>
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谢谢  这个问题已经解决
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