我即将完成一个项目，我注意到我的error_log文件中出现错误。加载index.php文件时出现此错误，并且在一次重新加载中出现了21行错误代码。
我尝试从header.php文件进行调试。最疯狂的事情是在加载header.php文件之前不会出现任何错误，但是当我在index.php文件中调用header.php时会出现错误。因此，我尝试通过PDO的try和catch来捕获错误。在错误日志文件中，我收到错误消息，因此我将代码从此Select Query: ".$e->getMessage()更改为Select Query: ".$e->getFile()和Select Query: ".$e->getLine()。但是，这样做，我得到的行号不是错误所在的行，而是错误所在的行。
我认为我在databse.php的选择查询中遇到问题。以下是我选择的查询代码：
final protected function select($args = array(), $is_die = false){
try {
$this->sql = "SELECT ";
if (isset($args['fields'])) {
if (is_array($args['fields'])) {
$this->sql .= implode(', ', $args['fields']);
} else {
$this->sql .= $args['fields'];
}
} else {
$this->sql .= " * ";
}
$this->sql .= " FROM ";
if (!isset($this->table) || empty($this->table)) {
throw new Exception("Table not set");
}
$this->sql .= $this->table;
/*Join Query*/
if (isset($args['join']) && !empty($args['join'])) {
$this->sql .= " ".$args['join'];
}
/*Join Query*/
if (isset($args['where']) && !empty($args['where'])) {
if (is_array($args['where'])) {
$temp = array();
foreach ($args['where'] as $column_name => $data) {
if (!is_array($data)) {
$data = array(
'value' => $data,
'operator' => '=',
);
}
$str = $column_name.' '.$data['operator'].' :'.str_replace('.', '_', $column_name);
$temp[] = $str;
}
$this->sql .= " WHERE ".implode(' AND ', $temp);
} else {
$this->sql .= " WHERE ".$args['where'];
}
}
/*Group*/
if (isset($args['group_by']) && !empty($args['group_by'])) {
$this->sql .= " GROUP BY ".$args['group_by'];
}
/*Group*/
/*Order*/
if (isset($args['order_by']) && !empty($args['order_by'])) {
$this->sql .= " ORDER BY ".$args['order_by'];
} else {
$this->sql .= " ORDER BY ".$this->table.".id DESC";
}
/*Order*/
/*Limit*/
if (isset($args['limit']) && !empty($args['limit'])) {
if (is_array($args['limit'])) {
$this->sql .= " LIMIT ".$args['limit'][0].",".$args['limit'][1];
} else {
$this->sql .= " LIMIT ".$args['limit'];
}
}
/*Limit*/
$this->stmt = $this->conn->prepare($this->sql);
if (is_array($args['where']) || is_object($args['where'])){
foreach ($args['where'] as $column_name => $data) {
$value = is_array($data) ? $data['value'] : $data; //check if passed where statement was an array, fetch value if so
if (is_int($value)) {
$param = PDO::PARAM_INT;
}elseif (is_bool($value)) {
$param = PDO::PARAM_BOOL;
}elseif (is_null($value)) {
$param = PDO::PARAM_NULL;
}else {
$param = PDO::PARAM_STR;
}
if ($param) {
$this->stmt->bindValue(":".str_replace('.', '_', $column_name), $value, $param);
}
}
}
if ($is_die) {
echo $this->sql;
debugger($this->stmt);
debugger($args, true);
}
$this->stmt->execute();
$data = $this->stmt->fetchAll(PDO::FETCH_OBJ);
return $data;
} catch (PDOException $e) {
error_log(
date('Y-m-d h:i:s A').", Select Query: ".$e->getMessage()."\r\n"
, 3, ERROR_PATH.'/error.log');
return false;
} catch (Exception $e) {
error_log(
date('Y-m-d h:i:s A').", General: ".$e->getMessage()."\r\n"
, 3, ERROR_PATH.'/error.log');
return false;
}
}
是否有可能使用try catch或其他方法获取引发错误的文件的行号？
答案 0 :(得分：0)
您可以使用try，catch来获取异常，因为行号使用__LINE__
例如
try {
/* Your Code */
} catch (Exception $e) {
echo __LINE__.$e->getMessage() "\n";
}
在您的代码中，捕获状态为
"Line No : " __LINE__.date('Y-m-d h:i:s A')
在下面的行号和文件路径中使用
"Line No : " __LINE__." : File Path : ".__FILE__.date('Y-m-d h:i:s A')
答案 1 :(得分：0)
我刚刚粘贴代码以在我的选择查询中获取行号和函数名称。
以下是代码：
Exception("MySQL error $mysqli->error <br> Query:<br> $sql", $msqli->errno);
添加上面的代码行后，select查询将如下所示：
final protected function select($args = array(), $is_die = false){
try {
$this->sql = "SELECT ";
if (isset($args['fields'])) {
if (is_array($args['fields'])) {
$this->sql .= implode(', ', $args['fields']);
} else {
$this->sql .= $args['fields'];
}
} else {
$this->sql .= " * ";
}
$this->sql .= " FROM ";
if (!isset($this->table) || empty($this->table)) {
throw new Exception("Table not set");
}
$this->sql .= $this->table;
/*Join Query*/
if (isset($args['join']) && !empty($args['join'])) {
$this->sql .= " ".$args['join'];
}
/*Join Query*/
if (isset($args['where']) && !empty($args['where'])) {
if (is_array($args['where'])) {
$temp = array();
foreach ($args['where'] as $column_name => $data) {
if (!is_array($data)) {
$data = array(
'value' => $data,
'operator' => '=',
);
}
$str = $column_name.' '.$data['operator'].' :'.str_replace('.', '_', $column_name);
$temp[] = $str;
}
$this->sql .= " WHERE ".implode(' AND ', $temp);
} else {
$this->sql .= " WHERE ".$args['where'];
}
}
/*Group*/
if (isset($args['group_by']) && !empty($args['group_by'])) {
$this->sql .= " GROUP BY ".$args['group_by'];
}
/*Group*/
/*Order*/
if (isset($args['order_by']) && !empty($args['order_by'])) {
$this->sql .= " ORDER BY ".$args['order_by'];
} else {
$this->sql .= " ORDER BY ".$this->table.".id DESC";
}
/*Order*/
/*Limit*/
if (isset($args['limit']) && !empty($args['limit'])) {
if (is_array($args['limit'])) {
$this->sql .= " LIMIT ".$args['limit'][0].",".$args['limit'][1];
} else {
$this->sql .= " LIMIT ".$args['limit'];
}
}
/*Limit*/
$this->stmt = $this->conn->prepare($this->sql);
if (is_array($args['where']) || is_object($args['where'])){
foreach ($args['where'] as $column_name => $data) {
$value = is_array($data) ? $data['value'] : $data; //check if passed where statement was an array, fetch value if so
if (is_int($value)) {
$param = PDO::PARAM_INT;
}elseif (is_bool($value)) {
$param = PDO::PARAM_BOOL;
}elseif (is_null($value)) {
$param = PDO::PARAM_NULL;
}else {
$param = PDO::PARAM_STR;
}
if ($param) {
$this->stmt->bindValue(":".str_replace('.', '_', $column_name), $value, $param);
}
}
}
if ($is_die) {
echo $this->sql;
debugger($this->stmt);
debugger($args, true);
}
$this->stmt->execute();
$data = $this->stmt->fetchAll(PDO::FETCH_OBJ);
return $data;
} catch (PDOException $e) {
error_log(
date('Y-m-d h:i:s A').", Select Query: ".$e->getMessage()."\r\n"
, 3, ERROR_PATH.'/error.log');
return false;
} catch (Exception $e) {
error_log(
date('Y-m-d h:i:s A').", General: ".$e->getMessage()."\r\n"
, 3, ERROR_PATH.'/error.log');
Exception("MySQL error $mysqli->error <br> Query:<br> $sql", $msqli->errno);
return false;
}
}
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