I'm working at laravel project but there is always that error : ErrorException Creating default object from empty value

Question

这是我的 candidatController.php 错误在最后一行之前的行中($prev_canditure->etat="archifé";)

$candidat_nw=Candidat::orderby('created_at','DESC')->first();
$prev_canditure=Candidature::where('candidat_id','=',$candidat->id)->orderby('created_at', 'DESC')->first();

$prev_canditure->etat = "Archivé";
$prev_canditure->save();

Answer 1

从您的代码中，您可以通过检查查询是否 return null

使用防御代码方法

$candidat_nw=Candidat::orderby('created_at','DESC')->first();
$prev_canditure=Candidature::where('candidat_id','=',$candidat->id)->orderby('created_at', 'DESC')->first();

if (!(empty($prev_candidature))){
$prev_canditure->etat = "Archivé";
$prev_canditure->save();

}

I'm working at laravel project but there is always that error : ErrorException Creating default object from empty value

I'm working at laravel project but there is always that error : ErrorException Creating default object from empty value

php

mysql

laravel