[英]php foreach getting values from an array
我在访问数组中的值时遇到问题,数组看起来像这样,
Array
(
[0] => Array
(
[id] => 1661
[code] => 849651318
[job_status] => 4
[looking_for] => Lorem ipsum
[keywords_education] => Derby University
[sector_id_csv] => 10,21,9,22,26
[last_job_title_1] => Programmer
[last_job_employer_1] => HBOS
[city] => Bury
[expected_salary_level] => LEVEL_2
[education_level] => COLLEGE
[job_looking_for] =>
[is_contract] => Y
[is_permanent] => N
[is_temporary] => Y
)
)
Array
(
[0] => Array
(
[id] => 402
[code] => 849650059
[job_status] => 3
[looking_for] => Lorem ipsum
[keywords_education] => Paris College
[sector_id_csv] => 27,22,19,21,12
[last_job_title_1] => Programmer
[last_job_employer_1] => HSBC
[city] => Bury
[expected_salary_level] => LEVEL_2
[education_level] => COLLEGE
[job_looking_for] =>
[is_contract] => N
[is_permanent] => Y
[is_temporary] => Y
)
)
Array
(
[0] => Array
(
[id] => 1653
[code] => 849651310
[job_status] => 3
[looking_for] => Lorem ipsum
[keywords_education] => Crewe University
[sector_id_csv] => 27,15,19,21,24
[last_job_title_1] => Programmer
[last_job_employer_1] => ICI
[city] => Bury
[expected_salary_level] => LEVEL_2
[education_level] => UNIVERSITY
[job_looking_for] =>
[is_contract] => N
[is_permanent] => Y
[is_temporary] => Y
)
)
我正在尝试获取这些值,我尝试执行以下操作,
foreach ($result as $rslt) {
echo $rslt->id;
}
我也试过,
foreach ($result as $rslt) {
$rslt['id'];
}
但是这些都不起作用,我不知道为什么,有人可以帮忙吗?
在第一个示例中,指出一些事情并希望澄清任何混淆:
foreach ($result as $rslt) {
echo $rslt->id;
}
箭头运算符( ->
)被滥用。 它通常用于在类对象上调用方法,在这种情况下, $rslt
是类对象,而id
是方法,情况并非如此。
在第二个示例中
foreach ($result as $rslt) {
$rslt['id'];
}
您几乎砸中了钉子,但忘记了调用echo
或print
来将值输出到屏幕上。
另外,您的$result
数组在索引0
处有一个子数组,因此需要进行更改
$rslt['id'];
以及echo
或print
语句。
echo $rslt[0]['id'];
第二个是正确的,但是您缺少echo
或print
echo $rslt['id'];
根据示例代码,您不清楚$result
是什么。
如果$result
包含所有列出的数组,则必须执行
foreach($result as $rslt) {
echo $rslt[0]['id'];
}
进一步参考:
我确信有人会在接下来的0.3秒内发布答案,因此我将尝试通过您的方法来帮助您。 显然,您知道如何使用print_r(或var_dump)。 您是否尝试过在数组中的$ rslt上使用它? 您似乎很难理解$ rslt是什么。
foreach($result as $rslt) {
echo $rslt[0]['id'];
}
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