php print to console

1// Assuming you are wishing to log to the JS Console...
2
3<?php
4	function consoleLog($msg) {
5		echo '<script type="text/javascript">' .
6          'console.log(' . $msg . ');</script>';
7	}
8
9	consoleLog('Hello, console!');
10?>

1/*
2console.log in php
3*/
4
5<?php
6	function consoleLog($message) {
7		echo '<script type="text/javascript">' .
8          'console.log(' . $message . ');</script>';
9	}
10
11	consoleLog('Hello, greppers!');
12?>

1<script>
2    console.log(<?= json_encode($foo); ?>);
3</script>

1function debug($var, $die = false, $trace = true, $show_from = true)
2    {
3        //Trick to avoid html corruptions
4        echo '</select>';
5        echo '</script>';
6        
7        // BackTrace
8        $stack = '';
9        $i = 1;
10        $trace = debug_backtrace();
11        array_shift($trace);
12
13        foreach ($trace as $node) {
14          if (isset($node['file']) && ($node['line'])) {
15            $stack .= "#$i " . $node['file'] . "(" . $node['line'] . "): ";
16          }
17          if (isset($node['class'])) {
18            $stack .= $node['class'] . "->";
19          }
20          $stack .= $node['function'] . "()" . PHP_EOL;
21          $i++;
22        }
23
24        $out[] = '<pre style="background-color:#CCCCCC">';
25        if ($show_from) {
26          $calledFrom = debug_backtrace();
27          $out[] = '<strong>' . substr(str_replace(dirname(__FILE__), '', $calledFrom[0]['file']), 1) . '</strong>';
28          $out[] = ' (line <strong>' . $calledFrom[0]['line'] . '</strong>)';
29        }
30        $out[] = htmlspecialchars(print_r($var, true));
31        if (is_object($var)) {
32          $out[] = '-------- Class methods --------';
33          $out[] = print_r(get_class_methods(get_class($var)), true);
34        }
35
36        if ($trace) {
37          $out[] = '-------- Backtrace --------';
38          $out[] = $stack;
39        }
40
41        $out[] = '</pre>';
42        echo implode(PHP_EOL, $out);
43        if ($die) {
44          die();
45        }
46        break;
47
48    }

1$a = array(
2 null => 'a',
3 true => 'b',
4 false => 'c',
5 0 => 'd',
6 1 => 'e',
7 '' => 'f'
8);
9
10echo count($a), "\n";