将PHP数组合并到简单数组中？

Question

I use print_r($test) to display arrays like this:

Array
(
    [0] => 123.5
)
Array
(
    [0] => 123.6
)
Array
(
    [0] => 121.1
)

This list goes down for at least 100 arrays, sometimes more and sometimes less. I want to convert these arrays into a simple array like this:

Array
(
    [0] => 123.5
    [1] => 123.6
    [2] => 121.1
)

How can I achieve this? I tried using array_merge() , but it does not work.

EDIT

This is how I get my arrays:

$i=0;
$linkObjs = $html->find('h3.r a'); 
foreach ($linkObjs as $linkObj) {

    $title = trim($linkObj->plaintext);

    $test = array($title);

    print_r($test);

    $i++;

}

I only used the numbers as an example; I actually deal with text. Sorry for this mislead, I am new at this.

Answer 1

您可以为此使用array_column函数，它仅返回数组的一列。

$merged = array_column($array, 0);

Answer 2

This should work for you:

Just array_reduce() your array into a one dimensional array.

$result = array_reduce($arr, "array_merge", [])

EDIT:

To get your result you have to rewrite your code a bit, so that you collect all values into one array by go throw all elements of $linkObjs with array_map() .

$linkObjs = $html->find('h3.r a'); 
$i = count($linkObjs);
$result = array_map(function($v){
    return trim($v->plaintext);
}, $linkObjs);

print_r($result);

Answer 3

Use this code:-

<?php 
$i=0;
$data=array();
$linkObjs = $html->find('h3.r a'); 
foreach ($linkObjs as $linkObj) {

    $title = trim($linkObj->plaintext);
    $data[]=title;// this line is main line ---
    $test = array($title);
    print_r($test);
    $i++;

}
print_r($data);
?>

Answer 4

You can use any of following...

$merged = array_column($test, 0);

OR

$merged = array();

foreach($test as $t){
    $merged[] = $t[0];
}

print_r($merged);