以下是PHP中的数组标题$ test_data：
Array
(
[1] => Array
(
[test_pack_id] => 84880f321fc957f9b28b702d5a43f57b
[test_pack_name] => CPT General Economics
[test_pack_desc] => This Package contains <b>16 chapterwise testlets</b> of 15 minutes each, <b>8 chapterwise tests </b>of 1 hour each and <b>3 full syllabus tests</b> of 1 hour covering syllabus of CPT General Economics.<br>
<b>Total Tests in this Package : 27</b>
[test_pack_type_id] => 7
[test_pack_image] =>
[test_pack_validity_year] => 0
[test_pack_validity_month] => 6
[test_pack_validity_days] => 0
[test_pack_plan] => paid
[test_pack_price] => 359.00
[test_pack_no_tests] => 0
[test_pack_publish] => yes
[test_pack_code] =>
[test_pack_sold] => 0
[test_pack_created_staff_id] => ff8d4a5ea6bf11dce105aa2fa7b959b8
[test_pack_updated_staff_id] => ff8d4a5ea6bf11dce105aa2fa7b959b8
[test_pack_created_date] => 1338298119
[test_pack_updated_date] => 1343564534
[test_pack_purchase_date] => 0
[test_details] => Array
(
[0] => Array
(
[test_id] => 580
[test_name] => CPT Testlet : Demand & Supply 1
[test_max_score] => 40.000
[test_no_questions] => 10
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] =>
[avg_score] => 0
[lower_score] =>
)
[1] => Array
(
[test_id] => 581
[test_name] => CPT Test : Micro Economics
[test_max_score] => 50.000
[test_no_questions] => 50
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] =>
[avg_score] => 0
[lower_score] =>
)
[2] => Array
(
[test_id] => 583
[test_name] => CPT Testlet : Micro Economics 1
[test_max_score] => 40.000
[test_no_questions] => 10
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] =>
[avg_score] => 0
[lower_score] =>
)
[3] => Array
(
[test_id] => 582
[test_name] => CPT Testlet : Micro Economics 2
[test_max_score] => 40.000
[test_no_questions] => 10
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] => 0.00
[avg_score] => 0
[lower_score] => 0.00
)
[4] => Array
(
[test_id] => 579
[test_name] => CPT Testlet : Demand & Supply 2
[test_max_score] => 40.000
[test_no_questions] => 10
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] =>
[avg_score] => 0
[lower_score] =>
)
[5] => Array
(
[test_id] => 578
[test_name] => CPT Test : Demand & Supply
[test_max_score] => 50.000
[test_no_questions] => 50
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] => 0.00
[avg_score] => 0
[lower_score] => 0.00
)
[6] => Array
(
[test_id] => 577
[test_name] => CPT Testlet : Production & Cost 1
[test_max_score] => 40.000
[test_no_questions] => 10
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] =>
[avg_score] => 0
[lower_score] =>
)
[7] => Array
(
[test_id] => 576
[test_name] => CPT Testlet : Production & Cost 2
[test_max_score] => 40.000
[test_no_questions] => 10
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] => 0.00
[avg_score] => 0
[lower_score] => 0.00
)
[8] => Array
(
[test_id] => 575
[test_name] => CPT Test : Production & Cost
[test_max_score] => 50.000
[test_no_questions] => 50
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] => 0.00
[avg_score] => 0
[lower_score] => 0.00
)
[9] => Array
(
[test_id] => 574
[test_name] => CPT Testlet : Price Determination 1
[test_max_score] => 40.000
[test_no_questions] => 10
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] => 0.00
[avg_score] => 0
[lower_score] => 0.00
)
[10] => Array
(
[test_id] => 573
[test_name] => CPT Testlet : Price Determination 2
[test_max_score] => 40.000
[test_no_questions] => 10
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] =>
[avg_score] => 0
[lower_score] =>
)
[11] => Array
(
[test_id] => 572
[test_name] => CPT Test : Price Determination
[test_max_score] => 50.000
[test_no_questions] => 50
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] =>
[avg_score] => 0
[lower_score] =>
)
[12] => Array
(
[test_id] => 571
[test_name] => CPT Testlet : Indian Economy - A Profile 1
[test_max_score] => 40.000
[test_no_questions] => 10
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] =>
[avg_score] => 0
[lower_score] =>
)
[13] => Array
(
[test_id] => 570
[test_name] => CPT Testlet : Indian Economy - A Profile 2
[test_max_score] => 40.000
[test_no_questions] => 10
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] =>
[avg_score] => 0
[lower_score] =>
)
[14] => Array
(
[test_id] => 569
[test_name] => CPT Test : Indian Economy - A Profile
[test_max_score] => 50.000
[test_no_questions] => 50
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] =>
[avg_score] => 0
[lower_score] =>
)
[15] => Array
(
[test_id] => 568
[test_name] => CPT Testlet : Aspects of Indian Economy 1
[test_max_score] => 40.000
[test_no_questions] => 10
[test_attempt] => 0
[test_not_attempt] => 0
[top_score] => 0.00
[avg_score] => 0
[lower_score] => 0.00
)
)
)
)
Now by using following statement I'm assigning this array to smarty template:
$smarty->assign('test_data', $test_data);
现在我想在我的smarty模板中打印所有测试的值，即我要为数组$test_data['test_details']应用循环。我应用了它，但它在smarty中运行不正常。给出一些模糊的结果。我不明白我在哪里弄错了。在这方面你能帮我吗？我的代码如下：
<select name="test_id" id="test_id">
<option value="all">All</option>
{foreach from=$test_data item=test key=key}
{foreach from=$test.test_details item=test_detail key=key}
<option value="{$test_detail.test_id}" {if $test_id==$test_detail.test_id} selected="selected"{/if}>{$test_detail.test_name}</option>
{/foreach}
{/foreach}
</select>
答案 0 :(得分：0)
首先：如果您需要在循环中使用key变量，请为其指定唯一名称。您同时命名为key。此外，您甚至不使用key，因此您可以完全跳过它，只留下item个属性。
第二：您指的是$test_id，我在您提供的代码段中没有看到它。如果它没有在其他地方定义，它就不会起作用。
答案 1 :(得分：0)
请参阅以下代码，以便在smarty模板中访问子阵列。
<select name="test_id" id="test_id">
<option value="all">All</option>
{foreach from=$test_data key=key item=test}
{foreach from=$test.test_details item=test_detail key=keylater}
<option value="{$test_detail.test_id}">{$test_detail.test_name}</option>
{/foreach}
{/foreach}
</select>