[ACCEPTED]-How can I convert a sentence to an array of words?-split
You could use explode, split or preg_split.
explode uses a fixed string:
$parts = explode(' ', $string);
while 3 split and preg_split use a regular expression:
$parts = split(' +', $string);
$parts = preg_split('/ +/', $string);
An example 2 where the regular expression based splitting 1 is useful:
$string = 'foo bar'; // multiple spaces
var_dump(explode(' ', $string));
var_dump(split(' +', $string));
var_dump(preg_split('/ +/', $string));
$parts = explode(" ", $str);
0
print_r(str_word_count("this is a sentence", 1));
Results in:
Array ( [0] => this [1] => is [2] => a [3] => sentence )
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Just thought that it'd be worth mentioning 10 that the regular expression Gumbo posted—although 9 it will more than likely suffice for most—may 8 not catch all cases of white-space. An example: Using 7 the regular expression in the approved answer 6 on the string below:
$sentence = "Hello my name is peter string splitter";
Provided me with the 5 following output through print_r:
Array
(
[0] => Hello
[1] => my
[2] => name
[3] => is
[4] => peter
[5] => string
[6] => splitter
)
Where as, when 4 using the following regular expression:
preg_split('/\s+/', $sentence);
Provided 3 me with the following (desired) output:
Array
(
[0] => Hello
[1] => my
[2] => name
[3] => is
[4] => peter
[5] => string
[6] => splitter
)
Hope 2 it helps anyone stuck at a similar hurdle 1 and is confused as to why.
Just a question, but are you trying to make 2 json out of the data? If so, then you might 1 consider something like this:
return json_encode(explode(' ', $inputString));
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