For 循环

Testing Is Documentation

tests/View/Compiler/CompilerForTest.phpFor 循环 - 图1

如果我们需要在模板中使用 for 循环，那么通过 for 标签可以很方便地输出。

code

  1. public function testBaseUse(): void
  2. {
  3.     $parser = $this->createParser();
  5.     $source = <<<'eot'
  6.         {for $i=1;$i<10;$i++}
  7.             QueryPHP - 代码版本for <br>
  8.         {/for}
  9.         eot;
  11.     $compiled = <<<'eot'
  12.         <?php for ($i=1;$i<10;$i++): ?>
  13.             QueryPHP - 代码版本for <br>
  14.         <?php endfor; ?>
  15.         eot;
  17.     $this->assertSame($compiled, $parser->doCompile($source, null, true));
  18. }

node 简单版

  1. public function testForNode(): void
  2. {
  3.     $parser = $this->createParser();
  5.     $source = <<<'eot'
  6.         <for start='1'>
  7.             QueryPHP - node - for <br>
  8.         </for>
  9.         eot;
  11.     $compiled = <<<'eot'
  12.         <?php for ($var = 1; $var <= 0; $var += 1): ?>
  13.             QueryPHP - node - for <br>
  14.         <?php endfor; ?>
  15.         eot;
  17.     $this->assertSame($compiled, $parser->doCompile($source, null, true));
  18. }

node 完整版

  1. public function testForNode2(): void
  2. {
  3.     $parser = $this->createParser();
  4.     $source = <<<'eot'
  5.         <for start='1' end='10' var='myValue' step='3'>
  6.             QueryPHP for <br>
  7.         </for>
  8.         eot;
  10.     $compiled = <<<'eot'
  11.         <?php for ($myValue = 1; $myValue <= 10; $myValue += 3): ?>
  12.             QueryPHP for <br>
  13.         <?php endfor; ?>
  14.         eot;
  16.     $this->assertSame($compiled, $parser->doCompile($source, null, true));
  17. }

JS 风格版: 例 1

最终生成一个 foreach 结果，简单的循环。

  1. public function testForJsStyle(): void
  2. {
  3.     $parser = $this->createParser();
  5.     $source = <<<'eot'
  6.         {% for item in navigation %}
  7.             <li><a href="{{ item.href }}">{{ item.caption }}</a></li>
  8.         {% /for %}
  9.         eot;
  11.     $compiled = <<<'eot'
  12.         <?php foreach ($navigation as $key => $item): ?>
  13.             <li><a href="<?php echo $item->href; ?>"><?php echo $item->caption; ?></a></li>
  14.         <?php endforeach; ?>
  15.         eot;
  17.     $this->assertSame($compiled, $parser->doCompile($source, null, true));
  18. }

JS 风格版: 例 2

可以使用逗号分割建和值，逗号连接不能有空格。

  1. public function testForJsStyle2(): void
  2. {
  3.     $parser = $this->createParser();
  5.     $source = <<<'eot'
  6.         {% for mykey,item in navigation %}
  7.             <li><a href="{{ item.href }}">{{ item.caption }}</a></li>
  8.         {% /for %}
  9.         eot;
  11.     $compiled = <<<'eot'
  12.         <?php foreach ($navigation as $mykey => $item): ?>
  13.             <li><a href="<?php echo $item->href; ?>"><?php echo $item->caption; ?></a></li>
  14.         <?php endforeach; ?>
  15.         eot;
  17.     $this->assertSame($compiled, $parser->doCompile($source, null, true));
  18. }

JS 风格版: 例 3

可以使用空格分割建和值。

  1. public function testForJsStyle3(): void
  2. {
  3.     $parser = $this->createParser();
  5.     $source = <<<'eot'
  6.         {% for mykey item in navigation %}
  7.             <li><a href="{{ item.href }}">{{ item.caption }}</a></li>
  8.         {% /for %}
  9.         eot;
  11.     $compiled = <<<'eot'
  12.         <?php foreach ($navigation as $mykey => $item): ?>
  13.             <li><a href="<?php echo $item->href; ?>"><?php echo $item->caption; ?></a></li>
  14.         <?php endforeach; ?>
  15.         eot;
  17.     $this->assertSame($compiled, $parser->doCompile($source, null, true));
  18. }