php关于数组的有关问题

<br />array (size=3)<br />  0 => <br />    array (size=3)<br />      0 => <br />        array (size=3)<br />          'welfareName' => string '包吃住' (length=9)<br />          'welfareIco' => string 'url_1' (length=5)<br />          'xyId' => int 1<br />      1 => <br />        array (size=3)<br />          'welfareName' => string '头等舱' (length=9)<br />          'welfareIco' => string 'url_2' (length=5)<br />          'xyId' => int 1<br />      2 => <br />        array (size=3)<br />          'welfareName' => string '有车' (length=6)<br />          'welfareIco' => string 'url_4' (length=5)<br />          'xyId' => int 1<br />  1 => <br />    array (size=2)<br />      0 => <br />        array (size=3)<br />          'welfareName' => string '头等舱' (length=9)<br />          'welfareIco' => string 'url_2' (length=5)<br />          'xyId' => int 2<br />      1 => <br />        array (size=3)<br />          'welfareName' => string '买买买' (length=9)<br />          'welfareIco' => string 'url_3' (length=5)<br />          'xyId' => int 2<br /> <br />---------------------------------------------------------<br />array (size=3)<br />  0 => <br />    array (size=11)<br />      'xyId' => int 1<br />      'xyLocation' => string '首尔' (length=6)<br />      'commentNum' => int 3<br />      'visitorNum' => int 1<br />  1 => <br />    array (size=11)<br />      'xyId' => int 2<br />      'xyLocation' => string '东京' (length=6)<br />      'commentNum' => int 0<br />      'visitorNum' => int 1<br />--------------------------------------------------------------------------------<br />array (size=3)<br />  0 => <br />    array (size=11)<br />      'xyId' => int 1<br />      'xyLocation' => string '首尔' (length=6)<br />      'commentNum' => int 3<br />      'visitorNum' => int 1<br />      'welfare' =><br />		array (size=3)<br />			  0 => <br />				array (size=3)<br />				  'welfareName' => string '包吃住' (length=9)<br />				  'welfareIco' => string 'url_1' (length=5)<br />				  'xyId' => int 1<br />			  1 => <br />				array (size=3)<br />				  'welfareName' => string '头等舱' (length=9)<br />				  'welfareIco' => string 'url_2' (length=5)<br />				  'xyId' => int 1<br />			  2 => <br />				array (size=3)<br />				  'welfareName' => string '有车' (length=6)<br />				  'welfareIco' => string 'url_4' (length=5)<br />				  'xyId' => int 1<br />       	<br />  1 => <br />    array (size=11)<br />      'xyId' => int 2<br />      'xyLocation' => string '东京' (length=6)<br />      'commentNum' => int 0<br />      'visitorNum' => int 1<br />	  'welfare' => <br />		array (size=2)<br />			  0 => <br />				array (size=3)<br />				  'welfareName' => string '头等舱' (length=9)<br />				  'welfareIco' => string 'url_2' (length=5)<br />				  'xyId' => int 2<br />			  1 => <br />				array (size=3)<br />				  'welfareName' => string '买买买' (length=9)<br />				  'welfareIco' => string 'url_3' (length=5)<br />				  'xyId' => int 2<br />

for($i=0; $i<count($数组2); $i++) {<br />  $数组3[$i] = $数组2;<br />  $数组3[$i]['welfare'] = @$数组1[$i];<br />}

<br />$arr1=array(<br />    array (<br />        array (<br />          'welfareName' => '包吃住',<br />          'welfareIco' => 'url_1',<br />          'xyId' => 1<br />		  ),<br />		array (<br />          'welfareName' => '头等舱',<br />          'welfareIco' => 'url_2',<br />          'xyId' =>1<br />		  ),<br />		array (<br />          'welfareName' =>'有车',<br />          'welfareIco' => 'url_4',<br />          'xyId' =>1<br />		  )<br />	),<br />  array (<br />      array (<br />          'welfareName' => '头等舱',<br />          'welfareIco' => 'url_2',<br />          'xyId' =>2<br />		 ),<br />      array (<br />          'welfareName' => '买买买',<br />          'welfareIco' => 'url_3',<br />          'xyId' =>2<br />		  )<br />	)<br />);<br />$arr2=array(<br />	array (<br />      'xyId' => 1,<br />      'xyLocation' => '首尔',<br />      'commentNum' =>3,<br />      'visitorNum' =>1,<br />	  ),<br />	array (<br />      'xyId' =>  2,<br />      'xyLocation' =>  '东京',<br />      'commentNum' =>  0,<br />      'visitorNum' =>  1,<br />	  )<br />);<br />foreach($arr1 as $k=>$v){<br />	$new[$v[0]['xyId']]=$v;<br />}<br />foreach($arr2 as $k=>$v){<br />	$arr2[$k]['welfare']=$new[$v['xyId']];<br />}<br />