Question

我在动态查询方面遇到了一些问题：

    $cond = array();

    if (!empty($type_contrat)) {
        $cond[] = "job_offers.type_contrat = '$type_contrat'";
    }

    if (!empty($categorie_poste)) {
        $cond[] = "job_offers.cat_poste = '$categorie_poste'";
    }

    if (!empty($niveau_etudes)) {
        $cond[] = "job_offers.qualifications = '$niveau_etudes'";
    }

    if (!empty($experience)) {
        $cond[] = "job_offers.experience >= '$experience'";
    }       

    if (count($cond)) {

                $query = $mysqli->query('SELECT 
                job_offers.ref_org,
                job_offers.titre,
                job_offers.qualifications,
                job_offers.experience,
                job_offers.cat_poste,
                job_offers.type_contrat,
                job_offers.taux_occupation,
                job_offers.lieu_affectation,
                job_offers.pays,
                job_offers.url,
                job_offers.date_entered,
                job_offers.date_expire,
                organisations.ref_org,
                organisations.name_organisation
                FROM job_offers,organisations
                WHERE job_offers.ref_org = organisations.ref_org AND ');

                $query .=  implode(' AND ', $cond);
    }


    print_r($query);

- ＆GT;结果：仅打印（为了便于阅读而添加了换行符）：

job_offers.type_contrat = '1' AND
job_offers.cat_poste = '3' AND
job_offers.qualifications = '2' AND
job_offers.experience >= '1'

因此没有结果。

Answer 1

您正在尝试将字符串附加到mysqli-result对象...

检查mysqli-＆gt; result（）函数here的返回值。

因为有人热衷于删除这个答案;这是你的解决方案：

    $cond = array();

    if (!empty($type_contrat)) {
        $cond[] = "job_offers.type_contrat = '$type_contrat'";
    }

    if (!empty($categorie_poste)) {
        $cond[] = "job_offers.cat_poste = '$categorie_poste'";
    }

    if (!empty($niveau_etudes)) {
        $cond[] = "job_offers.qualifications = '$niveau_etudes'";
    }

    if (!empty($experience)) {
        $cond[] = "job_offers.experience >= '$experience'";
    }       

    if (count($cond)) {

                $query = $mysqli->query('SELECT 
                job_offers.ref_org,
                job_offers.titre,
                job_offers.qualifications,
                job_offers.experience,
                job_offers.cat_poste,
                job_offers.type_contrat,
                job_offers.taux_occupation,
                job_offers.lieu_affectation,
                job_offers.pays,
                job_offers.url,
                job_offers.date_entered,
                job_offers.date_expire,
                organisations.ref_org,
                organisations.name_organisation
                FROM job_offers,organisations
                WHERE job_offers.ref_org = organisations.ref_org AND '.implode(' AND ', $cond));
    }


    print_r($query);

动态查询php / mysql

1 个答案: