I am fairly new to PHP and have been working on looping through this array for days...sigh...
http://pastebin.com/Rs6P4e4y
I am trying to get the name and headshot values of the writers and directors array.
I've been trying to figure out the foreach function to use with it, but have had no luck.
<?php foreach ($directors as $key => $value){
//print_r($value);
}
?>
Any help is appreciated.
You looking for some such beast? You didn't write how you wanted to process them, but hopefully this helps you.
$directors = array();
foreach( $object->people->directors as $o )
$directors[] = array( 'name' => $o->name, 'headshot' => $o->images->headshot );
$writers = array();
foreach( $object->people->writers as $o )
$writers[] = array( 'name' => $o->name, 'headshot' => $o->images->headshot );
var_dump( $directors );
var_dump( $writers );
Last note, if there's no guarantee that these members are set, you use isset before any dirty work.
Hope this helps.
Use -> to access properties of the objects.
foreach ($directors as $director) {
echo 'Name: ' . $director->name . "\n";
echo "Headshot: " . $director->images->headshot . "\n";
}
Your solution has already been posted, but I want to add something:
This isn't an Array, it's an object. Actually the directors property of the object is an Array. Look up what an object is and what associative arrays are!
Objects have properties, arrays have keys and values.
$object = new stdClass();
$object->something = 'this is an object property';
$array = new array();
$array['something'] = 'this is an array key named something';
$object->arrayproperty = $array;
echo $object->arrayproperty['something']; //this is an array key named something
Good luck with learning PHP! :)
Having variable $foo, which is an object, you can access property bar using syntax:
$foo->bar
So if you have an array od directors named $directors, you can simply use it the same way in foreach:
foreach ($directors as $value){
echo $value->name." ".$value->images->headshot;
}
Related
I need to get values of array through a loop with dynamic vars.
I can't understand why the "echo" doesn’t display any result for "$TAB['b']".
Do you know why ?
The test with error message : https://3v4l.org/Fp3GT
$TAB_a = "aaaaa";
$TAB['b'] = "bbbbb";
$TAB['b']['c'] = "ccccc";
$TAB_paths = ["_a", "['b']", "['b']['c']"];
foreach ($TAB_paths as $key => $value) {
echo "\n\n\${'TAB'.$value} : "; print_r(${'TAB'.$value});
}
You are treating the array access characters as if they are part of the variable name. They are not.
So if you have an array $TAB = array('b' => 'something');, the variable name is $TAB. When you do ${'TAB'.$value}, you're looking for a variable that's actually named $TAB['b'], which you don't have.
Since you say that you just want to be able to access array indexes dynamically based on the values in another array, you just put the indexes alone (without the array access characters) in the other array.
$TAB['b'] = 'bbbbbb';
$TAB['c'] = 'cccccc';
$TAB_paths = array('b', 'c');
foreach ($TAB_paths as $key => $value) {
echo "\n\n".'$TAB['."'$value'".'] : ' . $TAB[$value];
}
Output:
$TAB['b'] : bbbbbb
$TAB['c'] : cccccc
DEMO
It's unclear what you're trying to do, although you need to include $TAB_all in $TAB_paths:
$TAB_paths = [$TAB_all['a'], $TAB_all['aside']['nav']];
Result:
${TAB_all.aaaaa} : ${TAB_all.bbbbb} :
Not certain what you're needing. My guess you need to merge two arrays into one. Easiest solution is to use the array_merge function.
$TAB_paths = array_merge($TAB_a1, $TAB_a2);
You can define the variable first
foreach ($TAB_all as $key => $value) {
${"TAB_all" . $key} = $value;
}
Now Explore the result:
foreach ($TAB_all as $key => $value) {
print_r(${"TAB_all" . $key});
}
Say you have the array .
$arr = array('foo' => 'bar, 'wang' => 'chung', 'ying' => 'yang');
Now I want to loop through another array (var = $terms) to get values using foreach. If the value is any of the keys listed in $arr, I want to replace it with the value listed in $arr.
I've tried this ...
foreach($terms as $term => $arr) {
echo $term[$arr];
}
This doesn't work ... and I'm pretty stumped beyond that point. Reading through the manual on foreach ... I felt like this was on the right path - but think I'm needing a nudge in another direction.
Thoughts?
You can use array_key_exists() function for verifying whether key exists in another array or not If found then replace that with existing once. You can refer below answer,
$arr = array('foo' => 'bar', 'wang' => 'chung', 'ying' => 'yang');
$res = [];
foreach($terms as $term => $arr1) {
if( array_key_exists( $term, $arr ) ) {
$res[$term] = $arr[$term];
} else {
$res[$term] = $arr1;
}
}
echo '<pre>'; print_r($res);
I hope this will resolve your problem.
I have an array of dictionnaries like:
$arr = array(
array(
'id' => '1',
'name' => 'machin',
),
array(
'id' => '2',
'name' => 'chouette',
),
);
How can I find the name of the array containing the id 2 (chouette) ?
Am I forced to reindex the array ?
Thank you all, aparently I'm forced to loop through the array (what I wanted to avoid), I thought that it were some lookup fonctions like Python. So I think I'll reindex with id.
Just find the index of array that contains the id you want to find.
SO has enough questions and answers on this topic available.
Assuming you have a big array with lots of data in your real application, it might be too slow (for your taste). In this case, you indeed need to modify the structure of your arrays, so you can look it up faster, e.g. by using the id as an index for the name (if you are only interested in the name).
As a for loop would be the best way to do this, I would suggest changing you array so that the id is the arrays index. For example:
$arr = array(
1 => 'machin',
2 => 'chouette',
);
This way you could just get the name for calling $arr[2]. No looping and keeping your program running in linear time.
$name;
foreach ($arr as $value){
if ( $value['id'] == 2 ){
$name = $value['name'];
break;
}
}
I would say that it might be very helpful to reindex the information. If the ID is unique try something like this:
$newarr = array();
for($i = 0;$i < count($arr);$i++){ $newarr[$arr[$i]['id']] = $arr[$i]['name']; }
The result would be:
$newarr = array('1'=>'machin','2'=>'chouette');
Then you can go trough the array with "foreach" like this:
foreach($newarr as $key => $value){
if($value == "machin"){
return $key;
}
}
But of course the same would work with your old array:
foreach($arr as $item){
if($item['name'] == "machin"){
return $item['id'];
}
}
It depends on what you are planning to do with the array ;-)
array_key_exist() is the function to check for keys. foreach will help you get down in the multidimensional array. This function will help you get the name element of an array and let you specify a different id value.
function findKey($bigArray, $idxVal) {
foreach($bigArray as $array) {
if(array_key_exists('id', $array) && $array['id'] == $idxVal) {
return $array['name'];
}
}
return false;
}
//Supply your array for $arr
print(findKey($arr, '2')); //"chouette"
It's a bit crude, but this would get you the name...
$name = false;
foreach($arr as $v) {
if($v['id'] == '2') {
$name = $v['name'];
break;
}
}
echo $name;
So no, you are not forced to reindex the array, but it would make things easier.
Here's a representation of my array:
$arr
[0]
[code]='a code'
[number]='a number'
[1]
[code]='a code'
[number]='a number'
[2]
[code]='a code'
[number]='a number'
[3]
.
.
I'm doing a foreach loop to get all the [code] values am stuck: I forgot how to do it. Can anyone please help me with it?
You can just cast the array as an object of type stdClass
$obj = (object) $arr
That said however, your post title seems to imply you want an object, but the post body seems like you just want to access an array key.
In which case you can just use the following. But it depends what exactly you mean by 'get all of the [code] values.'
foreach( $arr as $inner_array ) {
$codes[] = $inner_array['code']; // Collect them all into a single dimensional array?
echo $inner_array['code']; // Output it here?
}
Maybe something like :
foreach($arr as $item) {
echo 'code: ' . $item['code'];
}
I hope it will help !
foreach($arr as $item) {
echo 'code:'.$item['code'];
}
I hope this helps.
I am trying to build an array and I am looping through the values of an XML document, I have everything pulling out great using xpath, here's my code:
function parseAccountIds($xml) {
$arr = array();
foreach($xml->entry as $k => $v) {
$acctName = $v->title;
$prop = $v->xpath('dxp:property');
foreach($prop as $k1 => $v1) {
if($v1->attributes()->name == "ga:accountId")
$acctId = (string) $v1->attributes()->value;
else if($v1->attributes()->name == "ga:profileId")
$profileId = (string) $v1->attributes()->value;
}
echo "profile id ".$profileId;
echo "<BR>";
echo "acctName ".$acctName;
echo "<BR>";
$subArray = array($acctName => $profileId);
print_r($subArray);
$arr[] = array($acctId => $subArray);
}
print_r($arr);
return json_encode($arr);
}
The most important bit is where I print_r subArray. I can see acctName and profileId print, but then subArray is empty. For Example:
profile id 45580
acctName accountName1
Array
(
)
profile id 4300
acctName accountName2
Array
(
)
profile id 4338
acctName accountName3
Array
(
)
How are these values not being inserted? I've been looking at the code for a while now, and I'm a bit confused.
Any suggestions would really help,
Thanks!
try this:
$subArray[$acctName] = $profileId;
instead of
$subArray = array($acctName => $profileId);
$v->title is actually a SimpleXMLObject still!
I forgot to cast it as a string, when I tried to make it the index in the array, it freaked out, geez I spent a whole hour on this!
Thanks for your suggestions guys :P