delete repeated elements array php

Question

I have this code in my controller

foreach ($xml->xpath('//cfdi:Comprobante//cfdi:Impuestos//cfdi:Traslados//cfdi:Traslado') as $col){

    if($col['impuesto']=='IVA'){                                                                                                                                                        
        $total_traslados['IVA']=0;
    }
    if($col['impuesto']=='IEPS'){
        $total_iva  =   $total_iva + $col['importe'];
        $total_traslados['IEPS']=$total_iva;
    }
    if($col['impuesto']=='ISR'){
        $total_iva  =   $total_iva + $col['importe'];
        $total_traslados['ISR']=0;
    }
    echo "<br>";
    print_r($total_traslados);
    echo "<br>";
}

And this is the result of the array

Array ( [IVA] => 0 )

Array ( [IVA] => 0 )

Array ( [IVA] => 0 )

Array ( [IVA] => 0 [IEPS] => 123 )

Array ( [IVA] => 0 [IEPS] => 123 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 123 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 123 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 123 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 123 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 1111111 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 1111111 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 1111111 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 1111111 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 1111111 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 1111111 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 1111111 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 7920 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 7920 [ISR] => 0 )

Array ( [IVA] => 0 [IEPS] => 14174 [ISR] => 0 )

How can i delete repeated elements?

[How to Make Multiple Dimension Arrays Unique](https://stackoverflow.com/questions/4585208/how-can-you-make-a-multidimensional-array-unique) here is a start. Your code right now does what it is meant to do. I think maybe search some more and try stuff or show us how you have attempted to resolve your problem before asking for an answer. — mcv, Feb 26 '18 at 19:39

ScaisEdge · Answer 1 · 2018-02-26T19:20:36.420

0

You could try using

$array_result =   array_unique($total_traslados, SORT_REGULAR);

var_dump($array_result);

or try =

$total_traslados = array_map("unserialize", 
             array_unique(array_map("serialize", $total_traslados)));

var_dump($total_traslados);

edited Feb 26 '18 at 19:20

answered Feb 26 '18 at 19:05

ScaisEdge

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Thanks for your answer, but the result its the same it continues showing the same repeated values – Abraham González Feb 26 '18 at 19:14
answer updated with another method .. let me know – ScaisEdge Feb 26 '18 at 19:20

score 0 · Answer 2 · edited Feb 27 '18 at 13:05

At the moment you are only printing the results every loop. If you don't want duplicates during the whole loop you should not echo during the loop but after.

Try something like:

$res = [];
foreach ($xml->xpath('//cfdi:Comprobante//cfdi:Impuestos//cfdi:Traslados//cfdi:Traslado') as $col){

    if($col['impuesto']=='IVA'){                                                                                                                                                        
        $total_traslados['IVA']=0;
    }
    if($col['impuesto']=='IEPS'){
        $total_iva  =   $total_iva + $col['importe'];
        $total_traslados['IEPS']=$total_iva;
    }
    if($col['impuesto']=='ISR'){
        $total_iva  =   $total_iva + $col['importe'];
        $total_traslados['ISR']=0;
    }
    $res[] = $total_traslados;
}

//due to $res has subarrays you have to use the SORT_REGULAR Flag
$res = array_unique($res,SORT_REGULAR);
var_dump($res);

Edit: more compact solution

Call to undefined function App\Http\Controllers\var_dum() – Abraham González Feb 26 '18 at 21:54 — Abraham González, Feb 26 '18 at 21:54
Have you misspelled `var_dump()` ? – Lu_kors Mar 19 '18 at 22:22 — Lu_kors, Mar 19 '18 at 22:22

score 0 · Answer 3 · answered Feb 26 '18 at 20:41

I have not tested this but this should work:

// This will hold only the unique array combinations
$unique_array = array();

foreach ($xml->xpath('//cfdi:Comprobante//cfdi:Impuestos//cfdi:Traslados//cfdi:Traslado') as $col){

    if($col['impuesto']=='IVA'){                                                                                                                                                        
        $total_traslados['IVA']=0;
    }
    if($col['impuesto']=='IEPS'){
        $total_iva  =   $total_iva + $col['importe'];
        $total_traslados['IEPS']=$total_iva;
    }
    if($col['impuesto']=='ISR'){
        $total_iva  =   $total_iva + $col['importe'];
        $total_traslados['ISR']=0;
    }

    // We enforce uniqueness by setting the key to the output of print_r
    // This might not be the most efficient idea but it should work
    $unique_array[ print_r($total_traslados, true) ] = $total_traslados;
}

foreach( $unique_array as $v )
{
    print_r( $v );
}

delete repeated elements array php

3 Answers3