After removing element 'b', the array has gaps. array_values creates a new array with sequential keys: [0 => 'a', 1 => 'c']. Working with Mixed Arraysarray_values works with arrays containing different value types. mixed_array.php ...
<?php function myfunction($value,$key) { echo "The key $key has the value $value"; } $a=array("a"=>"red","b"=>"green","c"=>"blue"); array_walk($a,"myfunction"); ?> 运行实例 » 定义和用法array_walk() 函数对数组中的每个元素应用用户自定义函数。在函数中,数组的键名和键值...
array_values() returns an indexed array containing all the values of array given as argument to it. Examples 1. Get values fromm an Array In this example, we will take an array with two key-value pairs. We will get the values alone form this array using array_values() function. PHP P...
PHP 中的 array 实际上是一个有序映射。映射是一种把 values 关联到 keys 的类型。此类型针对多种不同用途进行了优化; 它可以被视为数组、列表(向量)、哈希表(映射的实现)、字典、集合、堆栈、队列等等。 由于 array 的值可以是其它 array 所以树形结构和多维 array 也是允许的。
php $a1=array("a"=>"red","b"=>"green","c"=>"blue");$a2=array("c"=>"yellow","d"=>"black","e"=>"brown");$a3=array("f"=>"green","c"=>"purple","g"=>"red");$result=array_diff_key($a1,$a2,$a3);print_r($result);//比较健名。下标a没有对应的下标a,下标b没有...
PHP手册Array数组大全(解析) AI检测代码解析 //array_change_key_case() $age=['cyg'=>"kkk","liwen"=>"70"]; print_r(array_change_key_case($age,CASE_UPPER));//把键名转换成大写,默认是小写 1. 2. 3. AI检测代码解析 //array_chunk()...
The array_values of Array for PHP returns all the values of an array. Syntax array_values( array $array ): array Parameters array The array. Return Returns an indexed array of values. Examples 1· array · indexed <? $array = [ null, false, true, 0, 1 ]; $return = array_values(...
PHP array_walk() 函数 定义和用法 array_walk() 函数对数组中的每个元素应用用户自定义函数。在函数中,数组的键名和键值是参数。 <?phpfunctionmyfunction($value,$key,$p) {echo"$key$p$value"; }$a=array("a"=>"red","b"=>"green","c"=>"blue");array_walk($a,"myfunction","has the val...
// add a single array value 5 times and with a starting key = 3 $a = array_fill(3, 5, 'PHP'); // create some variable / value pairs $id = 1; $title = 'Google'; $url = 'https://www.google.com'; // put these two variable name into an array ...
然后的config.php的相关代码。 config.php <?php $servername = "localhost"; $username = "root"; $password = "XFAICL1314"; $dbname = "day1"; function stop_hack($value){ $pattern = "insert|delete|or|concat|concat_ws|group_concat|join|floor| \/\*|\*|\.\.\/|\.\/|union|into|load...