php数组问题 急 高手指点
$param = array(
'A1' => array('title'=>'标题001','content'=>'content001'),
'A2' => array('title'=>'标题002','content'=>'content002'),
'A3' => array('title'=>'标题001','content'=>'content003'),
'A4' => array('title'=>'标题003','content'=>'content004'),
'A5' => array('title'=>'标题003','content'=>'content004'),
'A6' => array('title'=>'标题003','content'=>'content004'),
'A7' => array('title'=>'标题003','content'=>'content004'),
'A8' => array('title'=>'标题001','content'=>'content005'),
'A9' => array('title'=>'标题005','content'=>'content005')
);
要求:数组中的相同title值不能同时多余2条,即只能 <=2 条,把多余的过滤掉
需要的结果如下所示:
$param = array(
'A1' => array('title'=>'标题001','content'=>'content001'),
'A4' => array('title'=>'标题003','content'=>'content004'),
'A5' => array('title'=>'标题003','content'=>'content004'),
'A8' => array('title'=>'标题001','content'=>'content005'),
'A9' => array('title'=>'标题005','content'=>'content005')
);
'A1' => array('title'=>'标题001','content'=>'content001'),
'A2' => array('title'=>'标题002','content'=>'content002'),
'A3' => array('title'=>'标题001','content'=>'content003'),
'A4' => array('title'=>'标题003','content'=>'content004'),
'A5' => array('title'=>'标题003','content'=>'content004'),
'A6' => array('title'=>'标题003','content'=>'content004'),
'A7' => array('title'=>'标题003','content'=>'content004'),
'A8' => array('title'=>'标题001','content'=>'content005'),
'A9' => array('title'=>'标题005','content'=>'content005')
);
要求:数组中的相同title值不能同时多余2条,即只能 <=2 条,把多余的过滤掉
需要的结果如下所示:
$param = array(
'A1' => array('title'=>'标题001','content'=>'content001'),
'A4' => array('title'=>'标题003','content'=>'content004'),
'A5' => array('title'=>'标题003','content'=>'content004'),
'A8' => array('title'=>'标题001','content'=>'content005'),
'A9' => array('title'=>'标题005','content'=>'content005')
);
作者: lyb411 发布时间: 2011-04-28
PHP code
(
[A1] => Array
(
[title] => 标题001
[content] => content001
)
[A8] => Array
(
[title] => 标题001
[content] => content005
)
[A2] => Array
(
[title] => 标题002
[content] => content002
)
[A4] => Array
(
[title] => 标题003
[content] => content004
)
[A7] => Array
(
[title] => 标题003
[content] => content004
)
[A9] => Array
(
[title] => 标题005
[content] => content005
)
)
$param = array( 'A1' => array('title'=>'标题001','content'=>'content001'), 'A2' => array('title'=>'标题002','content'=>'content002'), 'A3' => array('title'=>'标题001','content'=>'content003'), 'A4' => array('title'=>'标题003','content'=>'content004'), 'A5' => array('title'=>'标题003','content'=>'content004'), 'A6' => array('title'=>'标题003','content'=>'content004'), 'A7' => array('title'=>'标题003','content'=>'content004'), 'A8' => array('title'=>'标题001','content'=>'content005'), 'A9' => array('title'=>'标题005','content'=>'content005') ); foreach($param as $k=>$v) { if( ! $r[$v['title']] ) { $r[$v['title']][] = array_merge(array($k), $v); } else { $r[$v['title']][1] = array_merge(array($k), $v); } } //print_r($r); foreach($r as $t) { foreach($t as $v) { $out[array_shift($v)] = $v; } } print_r($out);Array
(
[A1] => Array
(
[title] => 标题001
[content] => content001
)
[A8] => Array
(
[title] => 标题001
[content] => content005
)
[A2] => Array
(
[title] => 标题002
[content] => content002
)
[A4] => Array
(
[title] => 标题003
[content] => content004
)
[A7] => Array
(
[title] => 标题003
[content] => content004
)
[A9] => Array
(
[title] => 标题005
[content] => content005
)
)
作者: xuzuning 发布时间: 2011-04-28