I am trying to store values in a for loop as an array so I can access them outside them outside the loop.
foreach ($doctor->booking as $booking) {
$bookeddate = date('Y-m-d', strtotime($booking->booked_time));
if( $bookeddate == $end_date ) {
$booked_time[] = date('H:i a', strtotime($booking->booked_time));
}
}
foreach ($booked_time as $key ) {
echo $key;
}
This code keeps giving me an error "Undefined variable: booked_time"
try
initializing $booked_time before using as it has scope inside function only
$booked_time = [];
foreach ($doctor->booking as $booking) {
$bookeddate=date('Y-m-d',strtotime($booking->booked_time));
if($bookeddate==$end_date){
$booked_time[]=date('H:i a',strtotime($booking->booked_time));
}
}
foreach ($booked_time as $key ) {
echo $key;
}
This is not applicable...
The array you were created is valid only for that scope(here it is for your FOREACh).
As soon as you are get out from that scope,the array variable is diappeared. SOLUTION - Declare your array in a global scope where both two foreach can be accessed.
Three things you should do:
initialize the variable $booked_time as empty array before looping: then you are sure to always have an array defined before the loop, as in:
$booked_time = []; - this will make the error disappear
verify $end_date actually has a value (the definition is not included in your code snippet) so there is something to compare
if it does have a value, ensure $end_date is formatted as date("Y-m-d") just like the bookeddate because you are doing a string comparison, where date("Y-m-d") is not the same as date("Ymd") even though they reference the exact same day
This is not possible because of the concept of block scope. You can read more about variable scoping in PHP here.
Generally, this means, that every variable declared within curly braces is only accessible in this block of code.
The easiest way to work around this issue is to create an empty array beforehand, like so:
$booked_time = [];
foreach ($doctor->booking as $booking) {
$bookeddate=date('Y-m-d',strtotime($booking->booked_time));
if($bookeddate==$end_date){
$booked_time[]=date('H:i a',strtotime($booking->booked_time));
}
}
foreach ($booked_time as $key ) {
echo $key;
}
create array outside the for loop.
then use array_push() to add elements to the array
possible solution
$booked_times = [];
foreach ($doctor->booking as $booking) {
$bookeddate = date('Y-m-d',strtotime($booking->booked_time));
if($bookeddate==$end_date){
array_push($booked_times, date('H:i a',strtotime($booking->booked_time));
}
}
foreach ($booked_time as $key ) {
echo $key;
}
You may want to consider using a collection. They are really cool and you have access to so many methods. https://laravel.com/docs/5.7/collections. I'm going to use code from the post you liked above and just change the array to a collection.
$booked_time = collect();
foreach ($doctor->booking as $booking) {
$bookeddate=date('Y-m-d',strtotime($booking->booked_time));
if($bookeddate==$end_date){
$booked_time->push(date('H:i a',strtotime($booking->booked_time)));
}
}
foreach ($booked_time as $key ) {
echo $key;
}
if($bookeddate==$end_date){. Be sure to initialize the var as an empty array if you want to avoid that, or test withisset