php 数组入库

Question

有这样一个数组 Array ( [hyjg1] => 1 [hyjg2] => 2 [hyjg3] => 3 [hyjg4] => 4 ) 其中[hyjg1]里面的1对应的是ID，后面是对应的值，现在我要取得[hyjg1]里面的1，也就是ID入库，这样应该怎么做呢要怎样遍历才能拿到对应的id和值，进行入库呢数据库有两个字段一个是ID，一个是值~~~

Answer 1

查看执行结果

<?php

$tt = array(
    'hyjg1' => 1,
    'hyjg2' => 2,
    'hyjg3' => 3,
    'hyjg4' => 4,
    'hyjg5' => 5,
    ....    // 可以有无数多个
);

$new = array();
foreach ($tt as $key => $t) {
    $id = intval(substr($key, 4));
    $new[] = array('id' => $id, 'value' => $t);
}

var_dump($new);

Answer 2

转成这样

array(
    'id' => 1,
    'value' => 1
);

Answer 3

foreach($arr as $key => $value){
    echo 'ID:'.substr($key,4,1);
}