LaravelのBladeテンプレートを拡張する方法 ref: http://qiita.com/syossan27/items/94b7ec78a49c62379bbb

file0.php

<?php

/*
 * 現在日付の和暦を表示
 */                        
Blade::extend(function($view, $compiler)
{
    $pattern = $compiler->createMatcher('now_y');

    $now_year = date('Y');          
    $japanese_calender_year = $now_year - 1988;

    return preg_replace($pattern, '<?php echo date("'.$japanese_calender_year.'") ?>', $view);
});

/* 
 * 現在日付の月を表示
 */
Blade::extend(function($view, $compiler)
{
    $pattern = $compiler->createMatcher('now_m');
    return preg_replace($pattern, '<?php echo date("n") ?>', $view);
});

/* 
 * 現在日付の日を表示
 */
Blade::extend(function($view, $compiler)
{
    $pattern = $compiler->createMatcher('now_d');
    return preg_replace($pattern, '<?php echo date("j") ?>', $view);
});

file0.txt

<?php

/*
 * 現在日付の和暦を表示
 */                        
Blade::extend(function($view, $compiler)
{
  $pattern = $compiler->createMatcher('now_y');

  $now_year = date('Y');          
  $japanese_calender_year = $now_year - 1988;

  return preg_replace($pattern, '<?php echo date("'.$japanese_calender_year.'") ?>', $view);
});

/* 
 * 現在日付の月を表示
 */
Blade::extend(function($view, $compiler)
{
  $pattern = $compiler->createMatcher('now_m');
  return preg_replace($pattern, '<?php echo date("n") ?>', $view);
});

/* 
 * 現在日付の日を表示
 */
Blade::extend(function($view, $compiler)
{
  $pattern = $compiler->createMatcher('now_d');
  return preg_replace($pattern, '<?php echo date("j") ?>', $view);
});

file1.php

Blade::extend(function($view, $compiler)
{
    $pattern = $compiler->createMatcher('拡張機能名');
    return preg_replace($pattern, '置き換えるPHPコード', $view);
});

file1.txt

Blade::extend(function($view, $compiler)
{
  $pattern = $compiler->createMatcher('拡張機能名');
  return preg_replace($pattern, '置き換えるPHPコード', $view);
});

file2.php

require app_path().'/library/blade_extensions.php';

file2.txt

require app_path().'/library/blade_extensions.php';

file3.txt

@now_y()
@now_m()
@now_d()