我有这个array_map:
/* Return an array of _octopus_ids */
$offices = array_map(
function($post) {
return array(
'id' => get_post_meta($post->ID, '_octopus_id', true),
);
},
$query->posts
);
返回以下内容:
array (size=10)
0 =>
array (size=1)
'id' => string '1382' (length=4)
1 =>
array (size=1)
'id' => string '1330' (length=4)
如何使该语句内爆,以便我仅获取字符串?
我尝试了以下操作:
$test = implode(', ', $offices);
var_dump($test);
var_dump($ test)返回以下内容:Array, Array, Array, Array, Array, Array, Array, Array, Array, Array
。
我收到Array to string conversion
错误-我在做什么错?我只想先打印1382,然后再打印1330
您可以使用array_column()来获取所有id
的数组
/* Return an array of _octopus_ids */
$offices = array_map(
function($post) {
return get_post_meta($post->ID, '_octopus_id', true)
},
$query->posts
);
print_r($offices);
//or
$officesStr = implode(', ', $offices);
echo $officesStr;
$useLaterArr = [];
foreach ($offices as $office) {
$useLaterArr = ['id' => $office];
}
echo "For later use :)\n";
print_r($useLaterArr);
$another = ['id' => $offices];
echo "Another way:\n";
print_r($offices);