Question

我有像这样的数组数据

@app.route('/newcontrolaccount', methods=['POST', 'GET'])
def newcontrolaccount():
    form = ControlAccountForm()
    if request.method == "POST" and form.validate():
        #accounttype = form.accounttype.data
        controlaccount = ControlAccount (code= form.code.data, 
                            name= form.name.data,
                            #accounttype = form.accounttype.data,
                            budget = form.budget.data,
                            PMB_start = form.PMB_start.data,
                            PMB_finish = form.PMB_finish.data,
                            PMU_start = form.PMU_start.data,
                            PMU_finish = form.PMU_finish.data,
                            parent_id = form.parent_id.data,
                            #curve_id = form.curve_id.data,
                            project = form.project_id.data
                            )
        db.session.add(controlaccount)
        db.session.commit()
        return redirect(url_for('ca_added'))
    return render_template('controlaccounts/newaccount.html', form=form, action='new')

所以我想将每个Array( [0] => stdClass Object ([iditem] => 31702152 [idcolor] => 39 ) [1] => stdClass Object ([iditem] => 31702152 [idcolor] => 38))添加到新变量idcolor，结果为$colorid。我找不到匹配关键字，或者我可以获得类似问题的链接吗？

Answer 1

您可以使用array_map映射/返回新数组，因为它是针对此类工作设计的，假设为：

// creating array of object
$a = (object) array('iditem' => 31702151,'idcolor' => 38 );
$b = (object) array('iditem' => 31702152,'idcolor' => 39 );
// placing above data to new array container
$ab = array($a,$b);

// callback function
function getData( $obj ) {
  return $obj->idcolor;
}

// array_map the array using above callback
$colorid = array_map("getData", $ab );

print_r( $colorid );

以上代码将生成Array( [0] => 39, [1] => 38 )。如果您希望将值直接存储在变量中作为单个字符串用逗号分隔，只需使用 implode 函数执行此操作：

$newStr = implode(',', $colorid );
// which will produce 38,39

Answer 2

如果我理解正确的话，你希望$colorid成为一个包含所有id的数组吗？

$colorid = array();

foreach($array as $object)
    array_push($colorid, $object->idcolor);

Answer 3

使用Array实现和内爆

$ids = [];
foreach($youarray as $value) {
    $ids[] = $value->idcolor;
}

$finalIds = implode(',', $ids);

使用字符串连接和rtrim

$finalIds = '';
foreach($youarray as $value) {
    $finalIds = $value->idcolor.',';
}

$finalIds = rtrim($finalIds, ',');

Answer 4

您可以使用array_reduce来完成工作：

<?php

// your data
$data = array(
  (object) array('iditem' => 31702152, 'idcolor' => 39),
  (object) array('iditem' => 31702152, 'idcolor' => 38),
);

// the code
$output = array_reduce($data, function($carry, $obj) {
  if (isset($obj->idcolor)) $carry[] = $obj->idcolor;
  return $carry;
}, array());
sort($output); // directly sort the $output variable

$output将是：

array(38, 39);

如何将数组索引键移动到新数组

4 个答案:

使用Array实现和内爆

使用字符串连接和rtrim