Maison >développement back-end >tutoriel php >php递归,静态变量,匿名函数使用
<meta charset="utf-8"> <title>Current To-Do List</title> <?php function make_list($parent) { global $tasks; echo '<ol>'; foreach($parent as $task_id => $todo) { echo "
'.print_r($tasks,1).''; make_list($tasks[0]); //把包含顶级任务的数组发送给它, 最顶级的parent_id是0 ?>
<?php // create the array. // Array structs // StudentId = > ["name" => "Name", "grade" => xx.x]; $students = [ 256 => ['name' => 'Jon', 'grade' => '98.5'], 2 => ['name' => 'Vance', 'grade' => '85.1'], 9 => ['name' => 'Stephen', 'grade' => '94.0'], 364 => ['name' => 'Steve', 'grade' => '85.1'], 68 => ['name' => 'Rob', 'grade' => '74.6'], ]; function name_sort($x, $y) { static $count = 1; echo "<p>Iteration $count: {$x['name']} vs. {$y['name']} </p>\n"; $count ++; return strcasecmp($x['name'], $y['name']); } function grade_sort($x, $y) { static $count = 1; echo "<p>Iteration $count: {$x['grade']} vs. {$y['grade']}</p>\n"; $count++; return $x['grade']
<?php // create the array. // Array structs // StudentId = > ["name" => "Name", "grade" => xx.x]; $students = [ 256 => ['name' => 'Jon', 'grade' => '98.5'], 2 => ['name' => 'Vance', 'grade' => '85.1'], 9 => ['name' => 'Stephen', 'grade' => '94.0'], 364 => ['name' => 'Steve', 'grade' => '85.1'], 68 => ['name' => 'Rob', 'grade' => '74.6'], ]; echo print_r($students, 1); uasort($students, function($x, $y){ return strcasecmp($x['name'], $y['name']); }); //保持键并使用自定义排序 echo print_r($students, 1); uasort($students, function($x, $y){ return $x['grade']
<?php function increment(&$i) { $i++; } $num = 2; increment($num); echo $num; ?>
以上就介绍了php递归,静态变量,匿名函数使用,包括了方面的内容,希望对PHP教程有兴趣的朋友有所帮助。