PHP Basics 1: Arrays and Data Structures

<!-- PHP数组与数据结构 -->

<?php
// //     $arr = array(&#39;欢迎&#39;,10 => &#39;学习&#39;,
// //         &#39;php&#39;,
// //         19 => &#39;语言&#39;,&#39;相信自己一定能学会&#39;
// //     );
    
// //     $arr = array(&#39;刘亦菲&#39;,
// //         &#39;anglebaby&#39;,&#39;鹿晗&#39;,&#39;范彬彬&#39;
// //     );
    
//     $arr[0] = &#39;北京&#39;;
//     $arr[1] = &#39;上海&#39;;
//     $arr[2] = &#39;广州&#39;;

//     $arr = array(&#39;0&#39; => &#39;小明&#39;,
//         &#39;1&#39; => &#39;小龙&#39;,
//         &#39;2&#39; => &#39;小花&#39;,
//         &#39;3&#39; => &#39;小兰&#39;
//     );
    
//     $arr = [
//         [&#39;南宁&#39;,&#39;崇左&#39;,&#39;凭祥&#39;,&#39;桂林&#39;,&#39;百色&#39;],
//         [&#39;龙州&#39;,&#39;武鸣&#39;,&#39;宁明&#39;,&#39;大兴&#39;,&#39;苹果&#39;]
//     ];
    
//     $arr = array(
//         array(&#39;南宁&#39;,&#39;崇左&#39;,&#39;凭祥&#39;,&#39;桂林&#39;,&#39;百色&#39;),
//         array(&#39;龙州&#39;,&#39;武鸣&#39;,&#39;宁明&#39;,&#39;大兴&#39;,&#39;苹果&#39;)
//     );
    
//     echo &#39;<pre class="brush:php;toolbar:false">&#39;;
//     echo count($arr);die;
//     var_dump($arr[2]);
//     echo &#39;

'; ?> '; } unset($num[1]); var_dump($num); $name = array( 'name1' => '芙蓉', 'name2' => '凤姐' ); foreach ($name as $key => $value){ echo $key.'——————'.$value.'
'; } $city = array( 0 => array( '南宁' => 'nanning', '百色' => 'baise', '凭祥' => 'pingxing' ), 1 => array( '广州' => 'guangzou', '深圳' => 'shengzheng', '东莞' => 'dongguan' ) ); foreach ($city as $value){ foreach ($value as $k => $v){ echo $k.'—'.$v.'
'; } } list($one,$two,$three) = array('张三','李四','王五'); echo '$one----'.$one.'
'; echo '$two----'.$two.'
'; echo '$three--'.$three.'
'; $kongjie = [ 'gao' => '黑丝', 'lian' => '很白', 'tui' => '很细', 'wuguan' => '精致', 'shengyin' => '甜美', ]; $date = each($kongjie); echo '

';
    var_dump($date);
    echo &#39;<pre class="brush:php;toolbar:false">&#39;;
    list($one,$two) = each($kongjie);
    echo $one.&#39;-&#39;.$two.&#39;<br />&#39;;
    
    $minggren = array("邓超","黄晓明","泞泽涛","钟汉良");
    $dc = array_shift($minggren);
    array_unshift($array, $value1);
    array_push($array, $value1);
    array_pop($array);
    current($array);
    key($array);
    next($array);
    prev($array);
    reset($array);
    end($array);
    print_r($minggren);
    
    //php数组常用函数
    array_combine($keys, $values);
    range($start, $end);
    compact($varname1);
    array_fill($start_index, $num, $value);
    array_chunk($array, $size);
    array_merge($array1);
    array_slice($array, $offset);
    array_diff($array1, $array2);
    array_search($needle, $haystack);
    array_splice($input, $offset);
    array_sum($array);
    in_array($needle, $haystack);
    array_key_exists($key, $array);
    shuffle($array);
    count($array_or_countable);
    array_flip($array);
    array_keys($array);
    array_values($array);
    array_reverse($array);
    array_count_values($array);
    array_rand($array);
    array_unique($array);
    sort($array);
    rsort($array);
    asort($array);
    arsort($array);
    asort($array);
    arsort($array);
    ksort($array);
    krsort($array);
    natsort($array);
    natcasesort($array);
    array_filter($array);
    extract($array);
    
?>