I want all arrays data in one array in php - php

Question

I want all arrays data in one array not all arrays in one array only the data of all arrays in one array without any other array in php. I have tried to do too many things but still don't work for me.
I also tried
json_encode
with
preg_match
But still don't work for me.
Here is my code
function fetchHashtags($getData){
$body = $getData;
$hashtag_set = [];
$array = explode('#', $body);
foreach ($array as $key => $row) {
$hashtag = [];
if (!empty($row)) {
$hashtag = explode(' ', $row);
$hashtag_set[] = '#' . $hashtag[0];
}
}
print_r($hashtag_set);
}
Output
Array
(
[0] => #Residência
[1] => #architecture
[2] => #casanaserra
[3] => #mountainhouse
[4] => #interiores
[5] => #decoration
[6] => #casanaserra
[7] => #casadecampo
[8] => #construção
[9] => #exterior
[10] => #rustico
[11] => #arpuro
[12] => #home
[13] => #riodejaneiro
[14] => #construir
[15] => #casasincriveis
[16] => #outdoor
[17] => #arquiteto
[18] => #casasincriveis
[19] => #montanhas
[20] => #archdaily
[21] => #architecturelovers
[22] => #arqlovers
[23] => #arqlove
[24] => #homedesign
[25] => #arquiteturaedecoração
)
Array
(
[0] => #We
[1] => #ascaspenvswheaton
)
Array
(
[0] => #شجریان_بشنویم...
[1] => #۰
[2] => #شجریان_بشنویم
[3] => #_
[4] => #شجریانیها
[5] => #همایون_شجریان
[6] => #مژگان_شجریان
[7] => #پرویزمشکاتیان
[8] => #موزیک
[9] => #سهراب_پورناظری
[10] => #محمدرضا_شجریان
[11] => #موزیک_ویدیو
[12] => #ایران
[13] => #ترانه_ماندگار
[14] => #تصنیف
[15] => #آهنگ_ایرانی
[16] => #هنر
[17] => #موسیقی_ایرانی
[18] => #شعروشاعری
[19] => #موسیقی_سنتی_ایران
[20] => #آواز_سنتی
[21] => #قدیمیها
[22] => #دلشدگان
[23] => #دلنشین
[24] => #سینما
[25] => #homayoun_shajarian
[26] => #music
[27] => #mohamadrezashajarian
[28] => #home
[29] => #iran
[30] => #shajarian
)
And one more thing i also want to remove some data that don't look like hashtags.
for example:
Array
(
[0] => #Residência
[1] => architecture // This should be removed
[2] => #casanaserra
[3] => mountainhouse // This also should be removed
[4] => #interiores
)

Answer 1

As you can see from my code you can use array_merge for merge arrays then use array_filter for filter value without # or other rules you need:
$array = [['1', '#2', '3', '#4'], ['5', '#6']];
$flatArray = array_merge(...$array);
$filteredArray = array_filter($flatArray, function($a) {
if (str_contains($a, '#')) {
return $a;
}
});
print_r($filteredArray);
Result:
Array (
[1] => #2
[3] => #4
[5] => #6 )
Reference:
array_merge
array_filter
str_contains
After seeing your code and the context of the situation I changed things:
Instead of use explode i used preg_split for split \n and space;
Delete array_map because you don't need it.
$array = ["
My name is Faraz shaikh i am a php developer and this my #instagram profile.Check out my #merge and my #packages with new #hashtags
#chinese #art #colors #home #harmory #peace #handmade #paintings #etsy
", "
My name is Hunain shaikh i am a php developer and this my #Facebook profile.Check out my #Berge and my #Hackages with new #tags
#english #Kite #colours #me #memory #pee #made #paints #etsafsy
"];
function fetchHashtags($getData) { // This Functions takes out the hashtags from the string and put it in to arrays.
$body = $getData;
$hashtag_set = [];
$array = preg_split('/[\s]+/', $body);
$mapArray = array_map(function($a) {
return str_replace(' ', '', $a);
}, $array);
$filteredArray = array_filter($mapArray, function($a) {
if (str_contains($a, '#')) {
return $a;
}
});
return $filteredArray;
}
$recentNumberOfPosts = 1;
$zeroPost = 0; //Get Post from 0 to recentNumberOfPosts | NOTE: default = 4
$finalArr = [];
while ($zeroPost <= $recentNumberOfPosts) {
// fetchHashtags($hashtagRecent['data'][$zeroPost]['caption']);
$finalArr[] = fetchHashtags($array[$zeroPost]);
$zeroPost++;
}
print_r(array_merge(...$finalArr));
Fiddle