[英]PHP array_keys - what am I doing wrong?
I have two arrays: 我有两个数组:
$fieldNames: $ fieldNames:
array(
[0] => array(
['fieldName'] =>'id'
['fieldType'] => 'int(11)'
)
[1] =>
['fieldName'] =>'adminID'
['fieldType'] =>'int(11)'
)
[2] =>array(
['fieldName'] =>'schoolID'
['fieldType'] =>'int(11)'
)
[3] => array(
['fieldName'] =>'lessonPlanName'
['fieldType'] =>'varchar(255)'
)
[4] =>array(
['fieldName'] =>'lessonPlanAssignmentDate'
['fieldType'] =>'varchar(255)'
)
[5] =>array(
['fieldName'] =>'lessonPlanDueDate'
['fieldType'] =>'varchar(255)'
)
[6] =>array(
['fieldName'] =>'lessonPlanTopics'
['fieldType'] =>'varchar(255)'
)
[7] =>array(
['fieldName'] =>'lessonPlanDescription'
['fieldType'] =>'text'
)
[8] =>array(
['fieldName'] =>'lessonPlanNotes'
['fieldType'] =>'text'
)
)
$formElementPairs: $ formElementPairs:
array(
['lessonPlanName'] =>'Test'
['lessonPlanAssignedDate'] =>'05/11/2011'
['lessonPlanDueDate'] =>'05/11/2011'
['lessonPlanTopics'] => 1
['lessonPlanDescription'] =>'test'
) )
I'm trying to check to see if array 2 is missing any of the 'fieldName' keys from array 1 and then add them to array 2 with null entries. 我试图检查数组2是否缺少数组1中的任何“ fieldName”键,然后将它们添加到具有空条目的数组2中。 The following code works in that I am getting the "fieldName" values from the first array (id, adminId, schoolId, etc.) but when I go to check them against the second array using array_keys, my resulting array always has a count of 0. Should also mention I am stuck using PHP4 on this project.
以下代码的工作方式是,我从第一个数组(id,adminId,schoolId等)获取“ fieldName”值,但是当我使用array_keys对照第二个数组检查它们时,我得到的数组总计数为0.还应该提到我在该项目上使用PHP4。
//merge arrays
for($fn=0; $fn<count($fieldNames); $fn++) {
$thisFieldName = $fieldNames[$fn]['fieldName'];
$fieldCheckArray = array_keys($formElementPairs, $thisFieldName);
//$firephp->fb(count($fieldCheckArray));
}
Am I misunderstanding array_keys and/or is there a more elegant way to do this in PHP4? 我是否误解了array_keys和/或在PHP4中是否有更优雅的方法来做到这一点?
Thanks 谢谢
You can use the array_key_exists
to check if array 2 is missing anything: array_key_exists 您可以使用
array_key_exists
来检查数组2是否缺少任何内容:array_key_exists
$missing = array();
for($fn=0; $fn<count($fieldNames); $fn++) {
$thisFieldName = $fieldNames[$fn]['fieldName'];
if(!array_key_exists($thisFieldName, $formElementPairs)) {
$missing[] = $thisFieldName;
}
}
//do something with $missing
array_keys
的第二个参数试图匹配值,而不是$formElementPairs
的键 。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.