Re: [PHP] traversing multi-dimensional arrays
blackwater dev wrote:
> What is the best way to do this? I have two arrays:
>
> $cars=array("ford","chevy");
> $models=array("ford"=>array("ranger","escape"),"chevy"=>array("malibu","tahoe"));
>
> then I need to traverse both arrays:
>
>foreach ($cars as $car){
> //now I need to get into the models array and echo out all
> of the
> models that
> //coincide with the specific car so it should print
> out ford-ranger
> //I basically want to do this but can't
>//how can I get into this second array without looping
> through the whole thing each time?
>foreach($cars[$car] as $model){
You were very close:
foreach ($models[$car] as $model){
Note that everybody else's post that you shouldn't even NEED/USE the $cars
array was correct -- unless you've got some other reason to keep it around
and you *DO* need it, for reasons too complicated to put in the original
email.
>
> }
>
> }
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Re: [PHP] traversing multi-dimensional arrays
Forget about the $cars array. The array "key" in the $models array will
be your car list.
$cars=array("ford","chevy");
$models=array("ford"=>array("ranger","escape"),"chevy"=>array("malibu","
tahoe"));
//Loop through first level of array, getting car maker
foreach($models as $carmaker=>$models) {
//Loop through car models, paring up with maker
foreach($models as $model) {
echo $carmaker.'-'.$model.'';
}
}
Another option, which isn't as readable, is to use implode instead of
the inner loop.
$cars=array("ford","chevy");
$models=array("ford"=>array("ranger","escape"),"chevy"=>array("malibu","
tahoe"));
foreach($models as $car=>$models) {
$pairing = $car.'-'.implode(''.$car.'-',$models).'';
echo $pairing;
}
On Feb 17, 2005, at 9:49 AM, blackwater dev wrote:
Hello all,
What is the best way to do this? I have two arrays:
$cars=array("ford","chevy");
$models=array("ford"=>array("ranger","escape"),"chevy"=>array("malibu",
"tahoe"));
then I need to traverse both arrays:
foreach ($cars as $car){
//now I need to get into the models array and echo out all
of the
models that
//coincide with the specific car so it should print
out ford-ranger
//I basically want to do this but can't
//how can I get into this second array without looping
through the whole thing each time?
foreach($cars[$car] as $model){
}
}
Thanks!
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Brent Baisley
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Landover Associates, Inc.
Search & Advisory Services for Advanced Technology Environments
p: 212.759.6400/800.759.0577
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[PHP] traversing multi-dimensional arrays
Hello all,
What is the best way to do this? I have two arrays:
$cars=array("ford","chevy");
$models=array("ford"=>array("ranger","escape"),"chevy"=>array("malibu","tahoe"));
then I need to traverse both arrays:
foreach ($cars as $car){
//now I need to get into the models array and echo out all
of the
models that
//coincide with the specific car so it should print
out ford-ranger
//I basically want to do this but can't
//how can I get into this second array without looping
through the whole thing each time?
foreach($cars[$car] as $model){
}
}
Thanks!
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