php php获取数组的数据大小
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php get array's data size
提问by Alex
Having this array:
有这个数组：
Array
(
[_block1] => Array
(
[list] => Array
(
[sub-list] => Array
(
)
)
[links] => Number
[total] => Number
...
)
[_block2] => Array
(
[@attributes] => Array
(
)
[title] => ...
[data] => Array ()
...
)
[_block3] => Array
(
..
)
)
Those blocks contain data returned by api. Knowing that each api returns data in a different way/structure I need to measure/calculate the data/size inside of each and one of them and then do if data > Xor < do something.
这些块包含 api 返回的数据。知道每个api以不同的方式/结构返回数据，我需要测量/计算每个api内部的数据/大小，然后做if data > X或<做某事。
Is it possible? I have searched google but I only found count()and that isn't what I need to make this work.
是否可以？我已经搜索过谷歌，但我只找到了count()，这不是我完成这项工作所需要的。
Edit:Each and of the those blocks contain many other sub blocks, and I was thinking of calculating the data size in bytes, because count wont do the job here.
编辑：这些块中的每一个都包含许多其他子块，我正在考虑以字节为单位计算数据大小，因为 count 不会在这里完成这项工作。
回答by Masoud Rostami
echo mb_strlen(serialize((array)$arr), '8bit');
回答by Davide Gualano
If I understood well your question, you need the size of each "block" subarray inside the main array.
如果我很好理解你的问题，你需要主数组中每个“块”子数组的大小。
You can do something like this:
你可以这样做：
$sizes = array();
foreach($returnedArray as $key => $content) {
$sizes[$key] = count($content);
}
The $sizesarray will be an associative array which the various "block"s as keys and the size of the data as values.
该$sizes数组将是一个关联数组，其中各种“块”作为键，数据的大小作为值。
Edit: after the edit of the question, if the data inside the innermost arrays are strings or integers you can use a function like this:
编辑：问题编辑后，如果最里面的数组中的数据是字符串或整数，你可以使用这样的函数：
function getSize($arr) {
$tot = 0;
foreach($arr as $a) {
if (is_array($a)) {
$tot += getSize($a);
}
if (is_string($a)) {
$tot += strlen($a);
}
if (is_int($a)) {
$tot += PHP_INT_SIZE;
}
}
return $tot;
}
assuming to have only ASCII-encoded strings.
假设只有 ASCII 编码的字符串。
回答by SERPRO
Do you mean something like this?
你的意思是这样吗？
$x = 32;
foreach($blocks as $key => $block)
{
if(getArraySize($block) < $x)
{
//Do Something
}else
{
//Do another thing
}
}
//Recursive function
function getArraySize($array)
{
$size = 0;
foreach($array as $element)
{
if(is_array($element))
$size += getArraySize($element);
else
$size += strlen($element);
}
return $size;
}
回答by gargAman
To get the size in bytes you can use the below code.
要获取以字节为单位的大小，您可以使用以下代码。
$serialized = serialize($foo);
if (function_exists('mb_strlen')) {
$size = mb_strlen($serialized, '8bit');
} else {
$size = strlen($serialized);
}
I hope it will be helpful.
我希望它会有所帮助。
