问题
Ok I have another question HERE for my Logging Class but I wanted to be able to add the line number of the calling script to the log file entry.
I have seen __Line__ but this gives me the line number of the line where this is at.
Example:
a.php
$log = new Logger();
$log->debug('hello'); // Say this is line #20
Now in my Logger.php class in the debug() I use the __Line__ Magic Constant on for example line #300. When I run the script I would like the log entry to read 'on line 20' but it read 'on line 300'. Besides passing the line number to the function is there any other way I could do this?
Example debug class function
public function debug($message) {
if(DEBUG) {
$this->calling_script = $this->getScriptBaseName();
$this->log_file = LOG_FILE_DIRECTORY."/".$this->calling_script.".log";
$this->fh = fopen($this->log_file, 'a') or die("Can't open log file: ".$this->log_file);
if($this->first_run) {
$this->log_entry = "\n[" . date("Y-m-d H:i:s", mktime()) . "][debug][line:".__LINE__."]:\t".$message."\n";
} else {
$this->log_entry = "[" . date("Y-m-d H:i:s", mktime()) . "][debug][line:".__LINE__."]:\t".$message."\n";
}
fwrite($this->fh, $this->log_entry);
fclose($this->fh);
$this->first_run = false;
}
}
EDIT: debug_backtrace() works great!!! Working below
public function debug($message) {
if(DEBUG) {
$debug_arr = debug_backtrace();
$this->calling_script = $this->getScriptBaseName();
$this->log_file = LOG_FILE_DIRECTORY."/".$this->calling_script.".log";
$this->fh = fopen($this->log_file, 'a') or die("Can't open log file: ".$this->log_file);
if($this->first_run) {
$this->log_entry = "\n[" . date("Y-m-d H:i:s", mktime()) . "][debug]:\t".$message." [line:".$debug_arr[0]['line']."]\n";
} else {
$this->log_entry = "[" . date("Y-m-d H:i:s", mktime()) . "][debug]:\t".$message." [line:".$debug_arr[0]['line']."]\n";
}
fwrite($this->fh, $this->log_entry);
fclose($this->fh);
$this->first_run = false;
}
}
回答1:
You'll have to use debug_backtrace for this or else always pass the line (with __LINE__
) to the function.
回答2:
Have you seen debug_backtrace()? I'm not sure of its overhead though.
来源:https://stackoverflow.com/questions/3215447/php-get-line-number-from-logging-event