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PHP foreach把二维数组遍历成为一维数组(就是怎么样降维)???
如果重复怎么处理?是否需要做区分?
如果忽略重复和反向还原,那么直接用array_merge即可
$new_arr = array_merge($arr['1'],$arr[2]);
foreach:
foreach($arr as $v=$k){
foreach($v as $val=$key){
$new_arr[$key] = $val;
}
}
php 判断数组里面有没有对象
可以用foreach遍历数组,每次用is_object函数判断数组元素是不是对象。像这样:
class A
{
private $a = 5;
}
$a = new A();
$array = array("a"=1,"b"=2,"c"=$a);
function has_object($arr)
{
foreach($arr as $value)
{
if(is_object($value))
{
return true;
}
}
return false;
}
print_r(has_object($array));
PHP array多维数组 循环遍历输出
//假设arr是上面的数据数组
foreach($arr['trades']-trade as $value){
echo $value-orders-order-oid;
echo $value-orders-order-title;
echo $value-receiver_mobile;
echo $value-orders-order-total_fee;
echo $value-orders-order-consign_time;
echo $value-orders-order-status;
}