重置PHP函数

Question

我有一个函数,我必须循环几次,但我得到一个错误的不能重新声明函数(),是不是可以循环这样的函数,或者它只是我的函数中的问题,

谢谢你的帮助.

while($i=0){
function gbFunc1($elem){ return (string)$elem['companyCode'][0]; }
    function gbFunc2($elem){ return (string)$elem['locationType'][0][0]->locationDescription->name; }
    function gbFunc3($elem){ return (string)$elem['vehicleRentalPrefType'][0]; }
    function gbFunc4($elem){ return (string)$elem['customerReferenceInfo'][0]->referenceQualifier; }
    function gbFunc5($elem){ return (string)$elem['customerReferenceInfo'][0]->referenceNumber; }
    function vFunc3($elem){ return (float)$elem['rateAmount'][0][1]->rateAmount; }

    $new = Fx::GroupBy($results_array, array('func:gbFunc1', 'func:gbFunc2', 'func:gbFunc3', 'func:gbFunc4', 'func:gbFunc5'), array(null, null, null, null, 'func:vFunc3',));
}

Answer 1

你需要在循环之外声明你的函数,否则每次循环迭代它都会重新声明函数.

function gbFunc1($elem){ return (string)$elem['companyCode'][0]; }
function gbFunc2($elem){ return (string)$elem['locationType'][0][0]->locationDescription->name; }
function gbFunc3($elem){ return (string)$elem['vehicleRentalPrefType'][0]; }
function gbFunc4($elem){ return (string)$elem['customerReferenceInfo'][0]->referenceQualifier; }
function gbFunc5($elem){ return (string)$elem['customerReferenceInfo'][0]->referenceNumber; }
function vFunc3($elem){ return (float)$elem['rateAmount'][0][1]->rateAmount; }

while($i=0){
    $gbF1 = gbFunc1($elem);
    $gbF2 = gbFunc2($elem);
    $gbF3 = gbFunc3($elem);
    $gbF4 = gbFunc4($elem);
    $gbF5 = gbFunc5($elem);
    $vF3 = vFunc3($elem);


    $new = Fx::GroupBy($results_array, array($gbF1, $gbF2, $gbF3, $gbF4, $gbF5), array(null, null, null, null, $vF3,));
}