I have a challenge where I want to extract individual hashtags from a string that contains hashtags.
Currently, I am utilizing the following code:
preg_match_all('/#([^\s]+)/', $str, $matches);
#test #test #test #example
The code functions correctly when users insert hashtags with spaces between them. However, it encounters issues when the hashtags are directly attached to one another.
#test#test#test#example
Give this a try:
preg_match_all('/#(\w+)/', $str, $matches);
For example:
<?php
$str = '#test #test2 #123 qwe asd #rere#dada';
preg_match_all('/#(\w+)/', $str, $matches);
var_export($matches);
Result:
array (
0 =>
array (
0 => '#test',
1 => '#test2',
2 => '#123',
3 => '#rere',
4 => '#dada',
),
1 =>
array (
0 => 'test',
1 => 'test2',
2 => '123',
3 => 'rere',
4 => 'dada',
),
)
Considering studying Regular Expressions can assist you in tackling these issues effectively.
Here is a solution:
$tags = explode('#', $string);
foreach($tags as $index => $tag)
$tags[$index] = '#' . $tag;
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