$log->save() method

Save text to a named log

  • If the log doesn't currently exist, it will be created.
  • The log filename is /site/assets/logs/[name].txt
  • Logs can be viewed in the admin at Setup > Logs

Example

// Save text searches to custom log file (search.txt):
$log->save("search", "User searched for: $phrase");

Usage

// basic usage
$bool = $log->save(string $name, string $text);

// usage with all arguments
$bool = $log->save(string $name, string $text, array $options = []);

Arguments

NameType(s)Description
namestring

Name of log to save to (word consisting of only [-._a-z0-9] and no extension)

textstring

Text to save to the log

options (optional)array

Options to modify default behavior:

  • showUser (bool): Include the username in the log entry? (default=true)
  • showURL (bool): Include the current URL in the log entry? (default=true)
  • user (User|string|null): User instance, user name, or null to use current User. (default=null)
  • url (bool): URL to record with the log entry (default=auto determine)
  • delimiter (string): Log entry delimiter (default="\t" aka tab)

Return value

bool

Whether it was written or not (generally always going to be true)

Exceptions

Method can throw exceptions on error:

  • WireException


Hooking $log->save(…)

You can add your own hook events that are executed either before or after the $log->save(…) method is executed. Examples of both are included below. A good place for hook code such as this is in your /site/ready.php file.

Hooking before

The 'before' hooks are called immediately before each $log->save(…) method call is executed. This type of hook is especially useful for modifying arguments before they are sent to the method.

$this->addHookBefore('WireLog::save', function(HookEvent $event) {
  // Get the object the event occurred on, if needed
  $log = $event->object;

  // Get values of arguments sent to hook (and optionally modify them)
  $name = $event->arguments(0);
  $text = $event->arguments(1);
  $options = $event->arguments(2);

  /* Your code here, perhaps modifying arguments */

  // Populate back arguments (if you have modified them)
  $event->arguments(0, $name);
  $event->arguments(1, $text);
  $event->arguments(2, $options);
});

Hooking after

The 'after' hooks are called immediately after each $log->save(…) method call is executed. This type of hook is especially useful for modifying the value that was returned by the method call.

$this->addHookAfter('WireLog::save', function(HookEvent $event) {
  // Get the object the event occurred on, if needed
  $log = $event->object;

  // An 'after' hook can retrieve and/or modify the return value
  $return = $event->return;

  // Get values of arguments sent to hook (if needed)
  $name = $event->arguments(0);
  $text = $event->arguments(1);
  $options = $event->arguments(2);

  /* Your code here, perhaps modifying the return value */

  // Populate back return value, if you have modified it
  $event->return = $return;
});

$log methods and properties

API reference based on ProcessWire core version 3.0.209

Twitter updates

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    30 December 2022

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“…building with ProcessWire was a breeze, I really love all the flexibility the system provides. I can’t imagine using any other CMS in the future.” —Thomas Aull