List 循环

Testing Is Documentation

tests/View/Compiler/CompilerListTest.phpList 循环 - 图1

list 标签也是用于循环输出，解析后的本质为 foreach，同时 foreach 比较符合大家的习惯。

code

  1. public function testCode(): void
  2. {
  3.     $parser = $this->createParser();
  5.     $source = <<<'eot'
  6.         {list $list $key $value}
  7.             {$key} - {$value}
  8.         {/list}
  9.         eot;
  11.     $compiled = <<<'eot'
  12.         <?php if (is_array($list)): foreach($list as $key => $value): ?>
  13.             <?php echo $key; ?> - <?php echo $value; ?>
  14.         <?php endforeach; endif; ?>
  15.         eot;
  17.     $this->assertSame($compiled, $parser->doCompile($source, null, true));
  18. }

code 省略键值

有时候我们不需要键值，这个时候我们在模板中写下如下的代码：

  1. public function testCodeFull(): void
  2. {
  3.     $parser = $this->createParser();
  4.     $source = <<<'eot'
  5.         {list $list $value}
  6.             {$value}
  7.         {/list}
  8.         eot;
  10.     $compiled = <<<'eot'
  11.         <?php if (is_array($list)): foreach($list as $value): ?>
  12.             <?php echo $value; ?>
  13.         <?php endforeach; endif; ?>
  14.         eot;
  16.     $this->assertSame($compiled, $parser->doCompile($source, null, true));
  17. }

node

  1. public function testNode(): void
  2. {
  3.     $parser = $this->createParser();
  4.     $source = <<<'eot'
  5.         <list for=list value=my_value key=my_key index=my_index>
  6.             {$my_index} {$my_key} {$my_value}
  7.         </list>
  8.         eot;
  10.     $compiled = <<<'eot'
  11.         <?php $my_index = 1; ?>
  12.         <?php if (is_array($list)): foreach ($list as $my_key => $my_value): ?>
  13.             <?php echo $my_index; ?> <?php echo $my_key; ?> <?php echo $my_value; ?>
  14.         <?php $my_index++; ?>
  15.         <?php endforeach; endif; ?>
  16.         eot;
  18.     $this->assertSame($compiled, $parser->doCompile($source, null, true));
  19. }

node 省略键值

有时候我们不需要键值，这个时候我们在模板中写下如下的代码：

  1. public function testNodeFull(): void
  2. {
  3.     $parser = $this->createParser();
  4.     $source = <<<'eot'
  5.         <list for=list>
  6.             {$index} {$key} {$value}
  7.         </list>
  8.         eot;
  10.     $compiled = <<<'eot'
  11.         <?php $index = 1; ?>
  12.         <?php if (is_array($list)): foreach ($list as $key => $value): ?>
  13.             <?php echo $index; ?> <?php echo $key; ?> <?php echo $value; ?>
  14.         <?php $index++; ?>
  15.         <?php endforeach; endif; ?>
  16.         eot;
  18.     $this->assertSame($compiled, $parser->doCompile($source, null, true));
  19. }