Error listing items from a foreach() array

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I have a array with the list of several Brazilian banks and need to take the name of the bank where the code according to what is in the user’s account, only when doing this search for code it returns me an error in foreach:

<?php

$bancos = array(
    array('code' => '001', 'name' => 'Banco do Brasil'),
    array('code' => '003', 'name' => 'Banco da Amazônia'),
    array('code' => '004', 'name' => 'Banco do Nordeste'),
    array('code' => '021', 'name' => 'Banestes'),
    array('code' => '025', 'name' => 'Banco Alfa'),
    array('code' => '027', 'name' => 'Besc'),
    array('code' => '029', 'name' => 'Banerj'),
    array('code' => '031', 'name' => 'Banco Beg'),
    array('code' => '033', 'name' => 'Banco Santander Banespa'),
    array('code' => '036', 'name' => 'Banco Bem'),
    array('code' => '037', 'name' => 'Banpará'),
    array('code' => '038', 'name' => 'Banestado'),
    array('code' => '039', 'name' => 'BEP'),
    array('code' => '040', 'name' => 'Banco Cargill'),
    array('code' => '041', 'name' => 'Banrisul'),
    array('code' => '044', 'name' => 'BVA'),
    array('code' => '045', 'name' => 'Banco Opportunity'),
    array('code' => '047', 'name' => 'Banese'),
    array('code' => '062', 'name' => 'Hipercard'),
    array('code' => '063', 'name' => 'Ibibank'),
    array('code' => '065', 'name' => 'Lemon Bank'),
    array('code' => '066', 'name' => 'Banco Morgan Stanley Dean Witter'),
    array('code' => '069', 'name' => 'BPN Brasil'),
    array('code' => '070', 'name' => 'Banco de Brasília – BRB'),
    array('code' => '072', 'name' => 'Banco Rural'),
    array('code' => '073', 'name' => 'Banco Popular'),
    array('code' => '074', 'name' => 'Banco J. Safra'),
    array('code' => '075', 'name' => 'Banco CR2'),
    array('code' => '076', 'name' => 'Banco KDB'),
    array('code' => '096', 'name' => 'Banco BMF'),
    array('code' => '104', 'name' => 'Caixa Econômica Federal'),
    array('code' => '107', 'name' => 'Banco BBM'),
    array('code' => '116', 'name' => 'Banco Único'),
    array('code' => '151', 'name' => 'Nossa Caixa'),
    array('code' => '175', 'name' => 'Banco Finasa'),
    array('code' => '184', 'name' => 'Banco Itaú BBA'),
    array('code' => '204', 'name' => 'American Express Bank'),
    array('code' => '208', 'name' => 'Banco Pactual'),
    array('code' => '212', 'name' => 'Banco Matone'),
    array('code' => '213', 'name' => 'Banco Arbi'),
    array('code' => '214', 'name' => 'Banco Dibens'),
    array('code' => '217', 'name' => 'Banco Joh Deere'),
    array('code' => '218', 'name' => 'Banco Bonsucesso'),
    array('code' => '222', 'name' => 'Banco Calyon Brasil'),
    array('code' => '224', 'name' => 'Banco Fibra'),
    array('code' => '225', 'name' => 'Banco Brascan'),
    array('code' => '229', 'name' => 'Banco Cruzeiro'),
    array('code' => '230', 'name' => 'Unicard'),
    array('code' => '233', 'name' => 'Banco GE Capital'),
    array('code' => '237', 'name' => 'Bradesco'),
    array('code' => '241', 'name' => 'Banco Clássico'),
    array('code' => '243', 'name' => 'Banco Stock Máxima'),
    array('code' => '246', 'name' => 'Banco ABC Brasil'),
    array('code' => '248', 'name' => 'Banco Boavista Interatlântico'),
    array('code' => '249', 'name' => 'Investcred Unibanco'),
    array('code' => '250', 'name' => 'Banco Schahin'),
    array('code' => '252', 'name' => 'Fininvest'),
    array('code' => '254', 'name' => 'Paraná Banco'),
    array('code' => '263', 'name' => 'Banco Cacique'),
    array('code' => '265', 'name' => 'Banco Fator'),
    array('code' => '266', 'name' => 'Banco Cédula'),
    array('code' => '300', 'name' => 'Banco de la Nación Argentina'),
    array('code' => '318', 'name' => 'Banco BMG'),
    array('code' => '320', 'name' => 'Banco Industrial e Comercial'),
    array('code' => '356', 'name' => 'ABN Amro Real'),
    array('code' => '341', 'name' => 'Itau'),
    array('code' => '347', 'name' => 'Sudameris'),
    array('code' => '351', 'name' => 'Banco Santander'),
    array('code' => '353', 'name' => 'Banco Santander Brasil'),
    array('code' => '366', 'name' => 'Banco Societe Generale Brasil'),
    array('code' => '370', 'name' => 'Banco WestLB'),
    array('code' => '376', 'name' => 'JP Morgan'),
    array('code' => '389', 'name' => 'Banco Mercantil do Brasil'),
    array('code' => '394', 'name' => 'Banco Mercantil de Crédito'),
    array('code' => '399', 'name' => 'HSBC'),
    array('code' => '409', 'name' => 'Unibanco'),
    array('code' => '412', 'name' => 'Banco Capital'),
    array('code' => '422', 'name' => 'Banco Safra'),
    array('code' => '453', 'name' => 'Banco Rural'),
    array('code' => '456', 'name' => 'Banco Tokyo Mitsubishi UFJ'),
    array('code' => '464', 'name' => 'Banco Sumitomo Mitsui Brasileiro'),
    array('code' => '477', 'name' => 'Citibank'),
    array('code' => '479', 'name' => 'Itaubank (antigo Bank Boston)'),
    array('code' => '487', 'name' => 'Deutsche Bank'),
    array('code' => '488', 'name' => 'Banco Morgan Guaranty'),
    array('code' => '492', 'name' => 'Banco NMB Postbank'),
    array('code' => '494', 'name' => 'Banco la República Oriental del Uruguay'),
    array('code' => '495', 'name' => 'Banco La Provincia de Buenos Aires'),
    array('code' => '505', 'name' => 'Banco Credit Suisse'),
    array('code' => '600', 'name' => 'Banco Luso Brasileiro'),
    array('code' => '604', 'name' => 'Banco Industrial'),
    array('code' => '610', 'name' => 'Banco VR'),
    array('code' => '611', 'name' => 'Banco Paulista'),
    array('code' => '612', 'name' => 'Banco Guanabara'),
    array('code' => '613', 'name' => 'Banco Pecunia'),
    array('code' => '623', 'name' => 'Banco Panamericano'),
    array('code' => '626', 'name' => 'Banco Ficsa'),
    array('code' => '630', 'name' => 'Banco Intercap'),
    array('code' => '633', 'name' => 'Banco Rendimento'),
    array('code' => '634', 'name' => 'Banco Triângulo'),
    array('code' => '637', 'name' => 'Banco Sofisa'),
    array('code' => '638', 'name' => 'Banco Prosper'),
    array('code' => '643', 'name' => 'Banco Pine'),
    array('code' => '652', 'name' => 'Itaú Holding Financeira'),
    array('code' => '653', 'name' => 'Banco Indusval'),
    array('code' => '654', 'name' => 'Banco A.J. Renner'),
    array('code' => '655', 'name' => 'Banco Votorantim'),
    array('code' => '707', 'name' => 'Banco Daycoval'),
    array('code' => '719', 'name' => 'Banif'),
    array('code' => '721', 'name' => 'Banco Credibel'),
    array('code' => '734', 'name' => 'Banco Gerdau'),
    array('code' => '735', 'name' => 'Banco Pottencial'),
    array('code' => '738', 'name' => 'Banco Morada'),
    array('code' => '739', 'name' => 'Banco Galvão de Negócios'),
    array('code' => '740', 'name' => 'Banco Barclays'),
    array('code' => '741', 'name' => 'BRP'),
    array('code' => '743', 'name' => 'Banco Semear'),
    array('code' => '745', 'name' => 'Banco Citibank'),
    array('code' => '746', 'name' => 'Banco Modal'),
    array('code' => '747', 'name' => 'Banco Rabobank International'),
    array('code' => '748', 'name' => 'Banco Cooperativo Sicredi'),
    array('code' => '749', 'name' => 'Banco Simples'),
    array('code' => '751', 'name' => 'Dresdner Bank'),
    array('code' => '752', 'name' => 'BNP Paribas'),
    array('code' => '753', 'name' => 'Banco Comercial Uruguai'),
    array('code' => '755', 'name' => 'Banco Merrill Lynch'),
    array('code' => '756', 'name' => 'Banco Cooperativo do Brasil'),
    array('code' => '757', 'name' => 'KEB'),
);

function Bancos(){

global $bancos;

return $bancos;

}

function BancoPorID($id){

global $bancos;

   foreach($bancos as $banco){

        if($banco['code'] == $id){

            return $banco['name'];
        }
   }
}

I call it that:

<?php echo BancoPorID($this->conta_model->user('banco')); //Aqui ele informa o CODE que esta no banco de dados ?>

Error that returns:

Message: Invalid argument supplied for foreach()

php array foreach function

  • In declaring global $bancos, you are creating it empty inside the Function. The variable $bancos array is not seen inside Function.

  • And how can I access this array inside the ? function because it has 2 functions that have to use this array with banks. The one that I posted and one that only gives a Return

  • That’s a class?

  • No, just a file that has Function. I posted the full file now.

  • Strip that global $bancos, you are creating a local variable when you do this, and the previous one lets you access it.

  • if I take the global $bancos of error Undefined variable: bancos

Show 1 more comment

3 answers

3


If you really need the nested structure presented in the question, you can simplify it like this:

function BancoPorID($id){
   global $bancos;
   $key = array_search( $id, array_column( $bancos, 'code') );
   return $key !== false ? $bancos[$key]['name']:'Banco desconhecido';
}

See working on IDEONE with the same structure as its code.


Alternatively, if you can restructure array, follows a suggestion of simplification:

$bancos = array(
    '001' => 'Banco do Brasil'),
    '003' => 'Banco da Amazônia'),
    ... etc ...
    '757' => 'KEB'),
);

function BancoPorID($id){
   global $bancos;
   return isset( $bancos[$id] ) ? $bancos[$id] : 'Banco desconhecido';
}

1

An alternative:

function BancoPorID($code)
{
    global $bancos;
    foreach($bancos as $banco){
        if(isset($banco['code']) && $banco['code'] == $code){
            return $banco['name'];
        }
        continue;
    }
    return 'Desconhecido';
}

var_export(BancoPorID('001'));

With the return within the loop can also put an end to the cycle, and return what is sought.

If the goal is to return only the bank name, simplifying as @Bacco mentioned in the second example would be enough.

0

SOLUTION

I was able to fix it by defining the variable $bancos as global out of functions, before setting the variable value $bancos

<?php

global $bancos; //Isso que adicionei

$bancos = array(
    array('code' => '001', 'name' => 'Banco do Brasil'),
    array('code' => '003', 'name' => 'Banco da Amazônia'),
    array('code' => '004', 'name' => 'Banco do Nordeste'),
    array('code' => '021', 'name' => 'Banestes'),
    array('code' => '025', 'name' => 'Banco Alfa'),
    array('code' => '027', 'name' => 'Besc'),
    array('code' => '029', 'name' => 'Banerj'),
    array('code' => '031', 'name' => 'Banco Beg'),
    array('code' => '033', 'name' => 'Banco Santander Banespa'),
    array('code' => '036', 'name' => 'Banco Bem'),
    array('code' => '037', 'name' => 'Banpará'),
    array('code' => '038', 'name' => 'Banestado'),
    array('code' => '039', 'name' => 'BEP'),
    array('code' => '040', 'name' => 'Banco Cargill'),
    array('code' => '041', 'name' => 'Banrisul'),
    array('code' => '044', 'name' => 'BVA'),
    array('code' => '045', 'name' => 'Banco Opportunity'),
    array('code' => '047', 'name' => 'Banese'),
    array('code' => '062', 'name' => 'Hipercard'),
    array('code' => '063', 'name' => 'Ibibank'),
    array('code' => '065', 'name' => 'Lemon Bank'),
    array('code' => '066', 'name' => 'Banco Morgan Stanley Dean Witter'),
    array('code' => '069', 'name' => 'BPN Brasil'),
    array('code' => '070', 'name' => 'Banco de Brasília – BRB'),
    array('code' => '072', 'name' => 'Banco Rural'),
    array('code' => '073', 'name' => 'Banco Popular'),
    array('code' => '074', 'name' => 'Banco J. Safra'),
    array('code' => '075', 'name' => 'Banco CR2'),
    array('code' => '076', 'name' => 'Banco KDB'),
    array('code' => '096', 'name' => 'Banco BMF'),
    array('code' => '104', 'name' => 'Caixa Econômica Federal'),
    array('code' => '107', 'name' => 'Banco BBM'),
    array('code' => '116', 'name' => 'Banco Único'),
    array('code' => '151', 'name' => 'Nossa Caixa'),
    array('code' => '175', 'name' => 'Banco Finasa'),
    array('code' => '184', 'name' => 'Banco Itaú BBA'),
    array('code' => '204', 'name' => 'American Express Bank'),
    array('code' => '208', 'name' => 'Banco Pactual'),
    array('code' => '212', 'name' => 'Banco Matone'),
    array('code' => '213', 'name' => 'Banco Arbi'),
    array('code' => '214', 'name' => 'Banco Dibens'),
    array('code' => '217', 'name' => 'Banco Joh Deere'),
    array('code' => '218', 'name' => 'Banco Bonsucesso'),
    array('code' => '222', 'name' => 'Banco Calyon Brasil'),
    array('code' => '224', 'name' => 'Banco Fibra'),
    array('code' => '225', 'name' => 'Banco Brascan'),
    array('code' => '229', 'name' => 'Banco Cruzeiro'),
    array('code' => '230', 'name' => 'Unicard'),
    array('code' => '233', 'name' => 'Banco GE Capital'),
    array('code' => '237', 'name' => 'Bradesco'),
    array('code' => '241', 'name' => 'Banco Clássico'),
    array('code' => '243', 'name' => 'Banco Stock Máxima'),
    array('code' => '246', 'name' => 'Banco ABC Brasil'),
    array('code' => '248', 'name' => 'Banco Boavista Interatlântico'),
    array('code' => '249', 'name' => 'Investcred Unibanco'),
    array('code' => '250', 'name' => 'Banco Schahin'),
    array('code' => '252', 'name' => 'Fininvest'),
    array('code' => '254', 'name' => 'Paraná Banco'),
    array('code' => '263', 'name' => 'Banco Cacique'),
    array('code' => '265', 'name' => 'Banco Fator'),
    array('code' => '266', 'name' => 'Banco Cédula'),
    array('code' => '300', 'name' => 'Banco de la Nación Argentina'),
    array('code' => '318', 'name' => 'Banco BMG'),
    array('code' => '320', 'name' => 'Banco Industrial e Comercial'),
    array('code' => '356', 'name' => 'ABN Amro Real'),
    array('code' => '341', 'name' => 'Itau'),
    array('code' => '347', 'name' => 'Sudameris'),
    array('code' => '351', 'name' => 'Banco Santander'),
    array('code' => '353', 'name' => 'Banco Santander Brasil'),
    array('code' => '366', 'name' => 'Banco Societe Generale Brasil'),
    array('code' => '370', 'name' => 'Banco WestLB'),
    array('code' => '376', 'name' => 'JP Morgan'),
    array('code' => '389', 'name' => 'Banco Mercantil do Brasil'),
    array('code' => '394', 'name' => 'Banco Mercantil de Crédito'),
    array('code' => '399', 'name' => 'HSBC'),
    array('code' => '409', 'name' => 'Unibanco'),
    array('code' => '412', 'name' => 'Banco Capital'),
    array('code' => '422', 'name' => 'Banco Safra'),
    array('code' => '453', 'name' => 'Banco Rural'),
    array('code' => '456', 'name' => 'Banco Tokyo Mitsubishi UFJ'),
    array('code' => '464', 'name' => 'Banco Sumitomo Mitsui Brasileiro'),
    array('code' => '477', 'name' => 'Citibank'),
    array('code' => '479', 'name' => 'Itaubank (antigo Bank Boston)'),
    array('code' => '487', 'name' => 'Deutsche Bank'),
    array('code' => '488', 'name' => 'Banco Morgan Guaranty'),
    array('code' => '492', 'name' => 'Banco NMB Postbank'),
    array('code' => '494', 'name' => 'Banco la República Oriental del Uruguay'),
    array('code' => '495', 'name' => 'Banco La Provincia de Buenos Aires'),
    array('code' => '505', 'name' => 'Banco Credit Suisse'),
    array('code' => '600', 'name' => 'Banco Luso Brasileiro'),
    array('code' => '604', 'name' => 'Banco Industrial'),
    array('code' => '610', 'name' => 'Banco VR'),
    array('code' => '611', 'name' => 'Banco Paulista'),
    array('code' => '612', 'name' => 'Banco Guanabara'),
    array('code' => '613', 'name' => 'Banco Pecunia'),
    array('code' => '623', 'name' => 'Banco Panamericano'),
    array('code' => '626', 'name' => 'Banco Ficsa'),
    array('code' => '630', 'name' => 'Banco Intercap'),
    array('code' => '633', 'name' => 'Banco Rendimento'),
    array('code' => '634', 'name' => 'Banco Triângulo'),
    array('code' => '637', 'name' => 'Banco Sofisa'),
    array('code' => '638', 'name' => 'Banco Prosper'),
    array('code' => '643', 'name' => 'Banco Pine'),
    array('code' => '652', 'name' => 'Itaú Holding Financeira'),
    array('code' => '653', 'name' => 'Banco Indusval'),
    array('code' => '654', 'name' => 'Banco A.J. Renner'),
    array('code' => '655', 'name' => 'Banco Votorantim'),
    array('code' => '707', 'name' => 'Banco Daycoval'),
    array('code' => '719', 'name' => 'Banif'),
    array('code' => '721', 'name' => 'Banco Credibel'),
    array('code' => '734', 'name' => 'Banco Gerdau'),
    array('code' => '735', 'name' => 'Banco Pottencial'),
    array('code' => '738', 'name' => 'Banco Morada'),
    array('code' => '739', 'name' => 'Banco Galvão de Negócios'),
    array('code' => '740', 'name' => 'Banco Barclays'),
    array('code' => '741', 'name' => 'BRP'),
    array('code' => '743', 'name' => 'Banco Semear'),
    array('code' => '745', 'name' => 'Banco Citibank'),
    array('code' => '746', 'name' => 'Banco Modal'),
    array('code' => '747', 'name' => 'Banco Rabobank International'),
    array('code' => '748', 'name' => 'Banco Cooperativo Sicredi'),
    array('code' => '749', 'name' => 'Banco Simples'),
    array('code' => '751', 'name' => 'Dresdner Bank'),
    array('code' => '752', 'name' => 'BNP Paribas'),
    array('code' => '753', 'name' => 'Banco Comercial Uruguai'),
    array('code' => '755', 'name' => 'Banco Merrill Lynch'),
    array('code' => '756', 'name' => 'Banco Cooperativo do Brasil'),
    array('code' => '757', 'name' => 'KEB'),
);

function Bancos(){

global $bancos;

return $bancos;

}

function BancoPorID($id){

global $bancos;

   foreach($bancos as $banco){

        if($banco['code'] == $id){

            return $banco['name'];
        }
   }
}
?>

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