I have google thoroughly, and cannot find the solution on how to discard the second dimension array in PHP leaving just the first dimension array.
From:
array(
['type'] => 'func'
['function'] => 'Model_Statement_Transaction::sum'
['parameters'] =>
stdClass(
statement_id = 8586
transaction_type = 'raw_flour-import'
column = 'quantity'
)
)
To:
array(
['type'] => 'func'
['function'] => 'Model_Statement_Transaction::sum'
['parameters'] => ''
)
Assuming you only want scalar values, you can simply do
$result = array_filter($theArray, 'is_scalar')
which will remove all items from the first level of the array that are not integer, float, string or boolean.
Further information:
array_filter — Filters elements of an array using a callback functionis_scalar — Finds whether a variable is a scalar If you don't need that to be dynamic, e.g. if you know parameters will be a non-scalar, you can simply unset that value or assign null or whatever you want it to be to it, e.g.
$array['parameters'] = null;
// or
unset($array['parameters']);
You use array_map
$parameters = new stdClass();
$parameters->statement_id = 8586 ;
$parameters->transaction_type = 'raw_flour-import' ;
$parameters->column = 'quantity' ;
$array = array('type' => 'func',
'function' => 'Model_Statement_Transaction::sum',
'parameters' => $parameters);
$array = array_map(function ($v){if (is_array($v) || is_object($v)) {return "";}return $v;}, $array);
var_dump($array);
Output
array
'type' => string 'func' (length=4)
'function' => string 'Model_Statement_Transaction::sum' (length=32)
'parameters' => string '' (length=0)
A multidimensional array is build of the first level containing the second level, the second level containing the third level, and so on...
Getting the first dimension means you'll be getting the secondary level as well.. Simply becasue the second level is part of the first level.
I'm not sure want exactly you want, but by this code:
<?php
foreach($array as $item)
{
if(is_array($item) || is_object($item))
{
unset($item); // or just $item = '';
}
}
?>
you will remove all second dimension arrays and objects from given $array.
I know this is an old question but I'm posting my solution for others in search.
This function will parse the original array until the max_d (maximum dimension) is reached and then it will just return for that value.
<?php
/**
* @param $v Curent value that is parsed
* @param $r Return value when the max_d is reached
* @param int $max_d Maximum dimension
* @param int $d Current dimension
*
* @return array
*/
function parse($v, $r, $max_d = 1, $d = 0) {
if (is_array($v)) {
if ($d >= $max_d) {
return $r;
} else {
$d++;
return array_map(function ($v) use ($max_d, $r, $d) {
return parse($v, $r, $max_d, $d);
}, $v);
}
} else {
return $v;
}
}
// Example:
$new_array = array_map(function ($v) {
return parse($v, "...", 2);
}, $original_array);
?>
unsetit.stdClassinto a zero-length string here.