Command Line PHP

php-cli.php

<?php
/** 
 * Run PHP in terminal / command line: 
 * $ php -a
 */ 

// Get input from stdin command line
$handle = fopen ("php://stdin","r");
$line = fgets($handle);

// dump debug contents to a custom log file
file_put_contents('custom_file.log', $line . PHP_EOL, FILE_APPEND); // FILE_APPEND dont overwrite

// get contents of var_dump of an object printable for logging
class aClass {
  public $a = true;
  public $b = 'the string';
  public function aMethod() {
    echo 'Hello World';
  }
}

$object = new aClass;
function varDumpLog($object) {
  ob_start();
  var_dump($object);
  $contents = ob_get_contents();
  ob_end_clean();
  return $contents;
}
$c = varDumpLog($object);
echo $c . PHP_EOL;
/* displays:
object(aClass)#1 (2) {
  ["a"]=>
  bool(true)
  ["b"]=>
  string(10) "the string"
}
*/

/**
 * Helper time difference logging function
 * 
 * $start time from PHP microtime(true) // returns seconds as float
 * $end time from PHP microttime(true) 
 */
function logTimeDiff($start, $end) {
  $seconds  = $end - $start;
  $milli = $seconds / 1000;
  return $milli . 'ms, ' . $seconds . 'sec' . PHP_EOL;
}

// PHP mictrotime() If get_as_float is set to TRUE, then microtime() returns a float
// which represents the current time in seconds since the Unix epoch accurate to the nearest microsecond.
function testLogTimeDiff($microseconds) {
  $a = microtime(true);
  usleep($microseconds); 
  echo logTimeDiff($a, microtime(true));
}

testLogTimeDiff(2000000); // wait for 2 seconds

?>