php array looping through two arrays with different indexes - php

Question

I have two arrays,one containing a list of names (array name = canNAMES),
["name 1","name 2","name 3"];
the first array has around 70 values within, And my second array has around 600 objects within it (array name=data),
[
{
"agency": "test agency",
"work_end": "21-Oct",
"contractor": "name n",
"rate": "£30.00",
"hours": 32,
"exp": null,
"net": "£960.00",
"vat": "£192.00",
"gross": "£1,152.00"
},
{
"agency": "test agency",
"work_end": "21-Oct",
"contractor": "name n",
"rate": "£25.00",
"hours": 30,
"exp": null,
"net": "£750.00",
"vat": "£150.00",
"gross": "£900.00"
}
]
I am trying to use php in_array function to get the objects that has the names listed in the first array out.
when I use it as below I am able to get the required results but it only reads up-to 70 records
foreach ($canNAMES as $index => $row) {
if (in_array($row, (array) $data[$index]["contractor"])) {
$MAIN[] = $data[$index];
}
}
The above code is where i loop through the first array(canNAMES array) that has 70 records. when i try looping through the second array(data array) i get an undefined offset error as the first array doesn't have a index above 69.
My question is how to solve this issue, is there a better way to do what i am trying.
Thanks

Answer 1

If the names aren't unique then you can easily just loop through each sets of data matching one against the other...
$canNAMES = ["name 1","name 2","name 3"];
$data = json_decode ('[
{
"agency": "test agency",
"work_end": "21-Oct",
"contractor": "name 3",
"rate": "£30.00",
"hours": 32,
"exp": null,
"net": "£960.00",
"vat": "£192.00",
"gross": "£1,152.00"
},
{
"agency": "test agency",
"work_end": "21-Oct",
"contractor": "name 1",
"rate": "£25.00",
"hours": 30,
"exp": null,
"net": "£750.00",
"vat": "£150.00",
"gross": "£900.00"
}
]');
foreach ( $canNAMES as $name ) {
foreach ( $data as $entry ) {
if ( $name == $entry->contractor ) {
print_r($entry);
}
}
}

Answer 2

I guess you want all the element in the data array that have a name that exist in the canNAMES array.
Consider the following:
$canNAMES = ["ccc","bbb","eee"];
$data = json_decode('[{"id":1, "contractor": "aaa"}, {"id":2, "contractor": "ddd"}, {"id":3, "contractor": "ccc"}, {"id":4, "contractor": "bbb"}]');
$res = array();
foreach($data as $elem) {
if (in_array($elem->contractor, $canNAMES))
$res[] = $elem;
}
echo print_r($res);
return;