oci_bind_by_name和TO_DATE PHP/OCI/Oracle的

Question

我有以下几点：

$ARTIFACT_NAME = $_POST['ArtifactName']; 
    $ARTIFACT_TYPE = $_POST['ArtifactType']; 
    $ARTIFACT_LOCATION = $_POST['ArtifactLocation']; 
    $ARTIFACT_DOMAIN = $_POST['ArtifactDomain']; 
    $ARTIFACT_AUTHOR = $_POST['ArtifactAuthor']; 
    $ARTIFACT_LABEL = 'DB_'.$ARTIFACT_LOCATION.'_'.$ARTIFACT_DOMAIN.'_'.$ARTIFACT_NAME; 
    $AUDIT_CONSTRAINTS = $_POST['AuditConstraints']; 
    $SECURITY_CONSTRAINTS = $_POST['SecurityConstraints']; 
    $REGISTERED_EMAIL = $_SERVER['HTTP_REMOTE_USER']; 
    $REGISTERED_TIMESTAMP = "to_date('15-08-2011 14:32:37', 'DD-MM-YYYY HH24:MI:SS')"; 

    $query = "INSERT INTO ".$db_schema.".ARTIFACTS (ARTIFACT_ID, ARTIFACT_NAME, ARTIFACT_TYPE, ARTIFACT_LOCATION, ARTIFACT_DOMAIN, ARTIFACT_AUTHOR, ARTIFACT_LABEL, AUDIT_CONSTRAINTS, SECURITY_CONSTRAINTS, REGISTERED_EMAIL, REGISTERED_TIMESTAMP) 
       VALUES (:bind1, :bind2, :bind3, :bind4, :bind5, :bind6, :bind7, :bind8, :bind9, :bind10, :bind11)"; 
    $statement = oci_parse($connection, $query); 

    oci_bind_by_name($statement, ":bind1", $ARTIFACT_ID); 
    oci_bind_by_name($statement, ":bind2", $ARTIFACT_NAME); 
    oci_bind_by_name($statement, ":bind3", $ARTIFACT_TYPE); 
    oci_bind_by_name($statement, ":bind4", $ARTIFACT_LOCATION); 
    oci_bind_by_name($statement, ":bind5", $ARTIFACT_DOMAIN); 
    oci_bind_by_name($statement, ":bind6", $ARTIFACT_AUTHOR); 
    oci_bind_by_name($statement, ":bind7", $ARTIFACT_LABEL); 
    oci_bind_by_name($statement, ":bind8", $AUDIT_CONSTRAINTS); 
    oci_bind_by_name($statement, ":bind9", $SECURITY_CONSTRAINTS); 
    oci_bind_by_name($statement, ":bind10", $REGISTERED_EMAIL); 
    oci_bind_by_name($statement, ":bind11", $REGISTERED_TIMESTAMP); 

其中提供了以下错误：

ORA-01858: a non-numeric character was found where a numeric was expected 

但是，如果我只是不绑定$REGISTERED_TIMESTAMP并插入to_date直接输入$query - 完美运行。

发生了什么事？这让我气疯了！

Answer 1

您正在使用带有绑定参数的Oracle语句。这很好，因为它可以防止在SQL语句中插入危险代码的SQL注入。但是，在这种情况下，它会阻止执行TO_CHAR函数。相反，它会尝试将整个字符串转换为时间戳，这当然不起作用。

的解决方法相当直接：从绑定参数搬往TO_CHAR功能直接进入声明：

$REGISTERED_TIMESTAMP = "15-08-2011 14:32:37"; 

$query = "INSERT INTO ".$db_schema.".ARTIFACTS (ARTIFACT_ID, ARTIFACT_NAME, ARTIFACT_TYPE, ARTIFACT_LOCATION, ARTIFACT_DOMAIN, ARTIFACT_AUTHOR, ARTIFACT_LABEL, AUDIT_CONSTRAINTS, SECURITY_CONSTRAINTS, REGISTERED_EMAIL, REGISTERED_TIMESTAMP) 
      VALUES (:bind1, :bind2, :bind3, :bind4, :bind5, :bind6, :bind7, :bind8, 
       :bind9, :bind10, to_date(:bind11, 'DD-MM-YYYY HH24:MI:SS'))";