我有两个数组: 1. 这里的每个对象都是从数据库中检索到的一行。
array
1 =>
object(stdClass)[41]
public 'id' => string '1' (length=1)
public 'class_id' => string '25' (length=2)
public 'section_id' => string '2' (length=1)
public 'student_id' => string '1' (length=1)
public 'date' => string '2011-11-27' (length=10)
public 'attendance' => string 'present' (length=7)
2 =>
object(stdClass)[41]
public 'id' => string '1' (length=1)
public 'class_id' => string '25' (length=2)
public 'section_id' => string '2' (length=1)
public 'student_id' => string '3' (length=1)
public 'date' => string '2011-11-27' (length=10)
public 'attendance' => string 'present' (length=7)
2。另一个数组来 self 的表单,看起来像这样。
array
0 =>
array
'class_id' => string '25' (length=2)
'section_id' => string '2' (length=1)
'student_id' => int 1
'date' => string '2011-11-27 00:00:00' (length=19)
'attendance' => string 'present' (length=7)
1 =>
array
'class_id' => string '25' (length=2)
'section_id' => string '2' (length=1)
'student_id' => int 2
'date' => string '2011-11-27 00:00:00' (length=19)
'attendance' => string 'present' (length=7)
这里我想做的是:
- 比较这两个并检查关键的 student_id 和 date 是否已经在数据库中。
- 从来自表单数据的第二个数组中,删除重复项并插入到数据中。
最终结果应该是:
array
0 =>
array
'class_id' => string '25' (length=2)
'section_id' => string '2' (length=1)
'student_id' => int 2
'date' => string '2011-11-27 00:00:00' (length=19)
'attendance' => string 'present' (length=7)
最佳答案
试试:
$c = [array_merge][1]($a,$b); var_dump([array_unique][1]($c));
希望对你有帮助
关于php - 如何在php中合并两个没有重复值的数组?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/8292032/