如何从php数组中删除元素

how to remove elements from a php array

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我得到这个数组作为MySQL查询的结果，然后我需要在条件语句之后从这个数组中删除一些数据。

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`array(5) { [0]=> array(13)
{
["emp_name"]=> string(14)"Yasitha Perera"
["emp_applied_date"]=> string(10)"2013 11 27"
["emp_applied_time"]=> string(8)"12:12 pm"
["hod_apprvd_time"]=> string(0)""
["hr_apprvd_time"]=> string(0)""
["emp_pending_on"]=> string(6)"BR/Hod"
["emp_status"]=> string(0)""
["Br_no"]=> string(3)"001"
["Br_name"]=> string(23)"1st Colombo City Branch"
["Contact_no"]=> string(23)"1st Colombo City Branch"
["user_name"]=> string(3)"br1"
["Hd_working_day"]=> string(1)"0"
["Department"]=> string(2)"br"
}
[1]=> array(13) {

["emp_name"]=> string(14)"Yasitha Perera"
["emp_applied_date"]=> string(10)"2013 11 27"
["emp_applied_time"]=> string(8)"12:12 pm"
["hod_apprvd_time"]=> string(0)""
["hr_apprvd_time"]=> string(0)""
["emp_pending_on"]=> string(6)"BR/Hod"
["emp_status"]=> string(0)""
["Br_no"]=> string(3)"002"
["Br_name"]=> string(18)"002-Baththaramulla"
["Contact_no"]=> string(3)"br2"
["user_name"]=> string(3)"br2"
["Hd_working_day"]=> string(1)"1"
["Department"]=> string(2)"br" }
[2]=> array(13) { ["emp_name"]=> string(12)"emp_rols_abt"
["emp_applied_date"]=> string(10)"2013 12 13"
["emp_applied_time"]=> string(8)"01:24 pm"
["hod_apprvd_time"]=> string(8)"12:49 pm"
["hr_apprvd_time"]=> string(8)"04:01 pm"
["emp_pending_on"]=> string(1)"-"
["emp_status"]=> string(0)""
["Br_no"]=> string(2)"hr"
["Br_name"]=> string(7)"HR Dep."
["Contact_no"]=> string(2)"hr"
["user_name"]=> string(3)"hr1"
["Hd_working_day"]=> string(1)"1"
["Department"]=> string(2)"hr" }
[3]=> array(13) {

["emp_name"]=> string(7)"my test"
["emp_applied_date"]=> string(10)"2013 12 13"
["emp_applied_time"]=> string(8)"01:27 pm"
["hod_apprvd_time"]=> string(0)""
["hr_apprvd_time"]=> string(0)""
["emp_pending_on"]=> string(6)"BR/Hod"
["emp_status"]=> string(0)""
["Br_no"]=> string(4)"icbs"
["Br_name"]=> string(9)"ICBS Dep."
["Contact_no"]=> string(5)"icbs1"
["user_name"]=> string(5)"icbs1"
["Hd_working_day"]=> string(1)"1"
["Department"]=> string(4)"icbs" }

[4]=> array(13) { ["emp_name"]=> string(3)"tae"
["emp_applied_date"]=> string(10)"2013 12 31"
["emp_applied_time"]=> string(8)"12:42 pm"
["hod_apprvd_time"]=> string(0)""
["hr_apprvd_time"]=> string(0)""
["emp_pending_on"]=> string(6)"BR/Hod"
["emp_status"]=> string(0)""
["Br_no"]=> string(2)"it"
["Br_name"]=> string(7)"IT Dep."
["Contact_no"]=> string(3)"it1"
["user_name"]=> string(3)"it1"
["Hd_working_day"]=> string(1)"0"
["Department"]=> string(2)"it" } }

我的情况是

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foreach ($data as $row){
if($row['Department']=='br'){
if($row['Br_no']!== $row['emp_servicing_bnk']){

//here i need to remove the things that not acceptable by this condition.
// but i don't know how to remove it from the array.

}
}

}