mysqli_stmt::bind_param(): 類型定義字符串中的元素數與綁定變量數不匹配

Question

所以我有一個非常令人頭疼的查詢，我需要執行涉及需要使用 mysqli 准備好的語句將65 個表單輸入注入到數據庫中的查詢。

我遇到的問題是它說我試圖調用bind_param的變量數量與我正在使用的“s”的數量不匹配。 我數了十幾次，看不出我哪里出錯了。 有 65 個變量和 65 個“s”。

誰能看到我遺漏的東西？ 或者我可能以不正確的方式使用 bind_param 方法？

// Preparing our query statement via mysqli which will auto-escape all bad characters to prevent injection
$query3 = 'INSERT INTO datashep_AMS.COMPLETE_APPLICATIONS (
    project_name,
    status,
    funding_requested,
    project_title,
    program,
    county,
    parish,
    name_of_watercourse,
    which_is_a_tributary_of,
    name_of_applicant,
    contact_person_or_project_supervisor,
    relationship_to_organization,
    business_phone,
    home_phone,
    email,
    signature_of_thesis_or_study_supervisor,
    mailing_address,
    postal_code,
    website,
    mailing_address_for_payment,
    hst_registration_no,
    total_cost_dollar,
    total_cost_percent,
    dollar_amount_requested_from_nbwtf,
    percent_amount_requested_from_nbwtf,
    descriptive_summary,
    background_of_organization,
    mandate,
    years_in_existence,
    membership,
    accomplishments,
    previous_project_name,
    previous_project_number,
    previous_project_amount_received_from_nbwtf,
    summary_of_activities,
    summary_of_Results,
    project_title_2,
    reason_and_or_purpose,
    objectives,
    project_description,
    methods,
    equipment_and_materials_required,
    personnel_required,
    proposed_start_date,
    proposed_end_date,
    type_of_data_to_be_stored,
    where_will_it_be_housed,
    monitoring,
    short_term_achievement,
    long_term_achievement,
    previous_studies,
    required_permits,
    consultants,
    short_term_commitment,
    long_term_commitment,
    project_duration,
    project_evaluation,
    promotion_of_project,
    promotion_of_client,
    publication_of_results,
    community_benefits,
    effects_on_traditional_uses,
    possible_changes_in_public_access_to_areas,
    possible_impact_on_wildlife_and_or_environment,
    likelihood_of_future_requests_for_funding,
    list_all_other_funding_sources_for_this_project
) VALUES (
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)';

// "Preparing" the query using mysqli->prepare(query) -- which is the equivalent of mysql_real_escape_string -- in other words, it's the SAFE database injection method
$stmt = $dbConnection->prepare($query3);

// "Bind_param" == replace all the "?"'s in the aforementioned query with the variables below

$stmt->bind_param("s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s", $project_name, $status, $funding_requested, $project_title, $program, $county, $parish, $name_of_watercourse, $which_is_a_tributary_of, $name_of_applicant, $contact_person_or_project_supervisor, $relationship_to_organization, $business_phone, $home_phone, $email, $signature_of_thesis_or_study_supervisor, $mailing_address, $postal_code, $website, $mailing_address_for_payment, $hst_registration_no, $total_cost_dollar, $total_cost_percent, $dollar_amount_requested_from_nbwtf, $percent_amount_requested_from_nbwtf, $descriptive_summary, $background_of_organization, $mandate, $years_in_existence, $membership, $accomplishments, $previous_project_name, $previous_project_number, $previous_project_amount_received_from_nbwtf, $summary_of_activities, $summary_of_Results, $project_title_2, $reason_and_or_purpose, $objectives, $project_description, $methods, $equipment_and_materials_required, $personnel_required, $proposed_start_date, $proposed_end_date, $type_of_data_to_be_stored, $where_will_it_be_housed, $monitoring, $short_term_commitment, $long_term_achievement, $previous_studies, $required_permits, $consultants, $short_term_commitment, $long_term_commitment, $project_duration, $project_evaluation, $promotion_of_project, $promotion_of_client, $publication_of_results, $community_benefits, $effects_on_traditional_uses, $possible_changes_in_public_access_to_areas, $possible_impact_on_wildlife_and_or_environment, $likelihood_of_future_requests_for_funding, $list_all_other_funding_sources_for_this_project);

// Perform the actual query!
$stmt->execute();

Answer 1

字符串中的字符不應以逗號分隔：

$stmt->bind_param("sss...", /* variables */);

您可以在手冊頁的示例中看到這種格式的演示。

Answer 2

有 65 個字符串參數，因此如果有 65 個 s，則您有正確的數字。 但是出現錯誤是因為您用逗號分隔了 s。 而不是$stmt->bind_param("s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s..."應該是

$stmt->bind_param("sssssssssssssssss..."

這應該可以解決您的錯誤。

Answer 3

bind_param的字符不應以逗號分隔。

如果必須綁定兩個變量，請執行以下操作：

$stmt->bind_param('ss', $firstvariable, $secondvariable);