I'm facing a problem that I can't solve on my own, I can't find a way to do it.
I have those two strings:
'Germany, "Sightseeing, Travelling, Hotels"'
and
'Health, Medicin, Healthcare'
I need to explode() this strings on the , char, but only if the text, where this , lays in isn't surrounded by ".
So, as example this would be the desired results:
array(0 => 'Germany', 1 => '"Sightseeing, Travelling, Hotels"');
array(0 => 'Health', 1 => 'Medicin', 2 => 'Healthcare');
By now this is what I have:
explode(",", 'Germany, "Sightseeing, Travelling, Hotels"');
Which will give out
array(0 => 'Germany', 1 => '"Sightseeing', 2 => 'Travelling', 3 => 'Hotels"');
How can I get to this result?
See str_getcsv() how to parse csv (even if you are not reading a csv file, this is exactly what this string looks like):
<?php
print_r(str_getcsv('Germany, "Sightseeing, Travelling, Hotels"', ','));
print_r(str_getcsv('Health, Medicin, Healthcare'));
print_r(str_getcsv('D"uh!, \"Test\"', ','));
?>
results in:
Array ( [0] => Germany [1] => Sightseeing, Travelling, Hotels )
Array ( [0] => Health [1] => Medicin [2] => Healthcare )
Array ( [0] => D"uh! [1] => "Test" )
Remarks: This Function is available beginning with php version 5.3.0 and can also be configured as to what your input looks like. I added some special cases, this is a classic problem that looks far simpler than it is.
You can use php function str_getcsv.
Here an example:
$string_1 = 'Germany, "Sightseeing, Travelling, Hotels"';
$string_2 = 'Health, Medicin, Healthcare';
$result_1 = str_getcsv($string_1,',','"');
$result_2 = str_getcsv($string_2,',','"');
print_R($result_1);
print_R($result_2);
that outputs:
Array
(
[0] => Germany
[1] => Sightseeing, Travelling, Hotels
)
Array
(
[0] => Health
[1] => Medicin
[2] => Healthcare
)
You can after map each element of the resultant array, and if there is a comma you can surround it with "
foreach($result_1 as $i => $item) {
if(substr_count($item,',') > 0) {
$result_1[$i] = '"'.$item.'"';
}
}
Wich produce:
Array
(
[0] => Germany
[1] => "Sightseeing, Travelling, Hotels"
)
Related
I'm trying to find a regex capable of capturing the content of short codes produces in Wordpress.
My short codes have the following structure:
[shortcode name param1="value1" param2="value2" param3="value3"]
The number of parameters is variable.
I need to capture the shortcode name, the parameter name and its value.
The closest results I have achieved is with this:
/(?:\[(.*?)|\G(?!^))(?=[^][]*])\h+([^\s=]+)="([^\s"]+)"/
If I have the following content in the same string:
[specs product="test" category="body"]
[pricelist keyword="216"]
[specs product="test2" category="network"]
I get this:
0=>array(
0=>[specs product="test"
1=> category="body"
2=>[pricelist keyword="216"
3=>[specs product="test2"
4=> category="network")
1=>array(
0=>specs
1=>
2=>pricelist
3=>specs
4=>)
2=>array(
0=>product
1=>category
2=>keyword
3=>product
4=>category)
3=>array(
0=>test
1=>body
2=>216
3=>test2
4=>network)
)
I have tried different regex models but I always end up with the same issue, if I have more than one parameter, it fails to detect it.
Do you have any idea of how I could achieve this?
Thanks
Laurent
You could make use of the \G anchor using 3 capture groups, where capture group 1 is the name of the shortcode, and group 2 and 3 the key value pairs.
Then you can remove the first entry of the array, and remove the empty entries in the 1st, 2nd and 3rd entry.
This is a slightly updated pattern
(?:\[(?=[^][]*])(\w+)|\G(?!^))\h+(\w+)="([^"]+)"
Regex demo | Php demo
Example
$s = '[specs product="test" category="body"]';
$pattern = '/(?:\[(?=[^][]*])(\w+)|\G(?!^))\h+(\w+)="([^"]+)"/';
$strings = [
'[specs product="test" category="body"]',
'[pricelist keyword="216"]',
'[specs product="test2" category="network" key="value"]'
];
foreach($strings as $s) {
if (preg_match_all($pattern, $s, $matches)) {
unset($matches[0]);
$matches = array_map('array_filter', $matches);
print_r($matches);
}
}
Output
Array
(
[1] => Array
(
[0] => specs
)
[2] => Array
(
[0] => product
[1] => category
)
[3] => Array
(
[0] => test
[1] => body
)
)
Array
(
[1] => Array
(
[0] => pricelist
)
[2] => Array
(
[0] => keyword
)
[3] => Array
(
[0] => 216
)
)
Array
(
[1] => Array
(
[0] => specs
)
[2] => Array
(
[0] => product
[1] => category
[2] => key
)
[3] => Array
(
[0] => test2
[1] => network
[2] => value
)
)
I'm consuming an API which returns an array of objects as this:
$base = array(
["orange","_","banana"],
["banana","_","_"],
["_","apple","kiwi"],
["_","raspberry","strawberry"]
);
And I intend to show "0" when key value is "_" however I haven't found a better way to do this than this:
foreach ($base as $key => $value) {
for ($i=0; $i<=3;$i++) {
if ($base[$key][$i]=="_")
$base[$key][$i]="0";
}
}
This works just fine since it's a simple demo but the real array is sometimes big and I've found this solution somewhat inefficient.
My question is, there's some php built-in function to do achieve this in or at least a better way to do this?
Thanks in advance guys,
Use array_walk_recursive(), pass the elements by reference and walk over the array, checking for the value _ - if its a match, replace it with 0.
$base = array(
["orange","_","banana"],
["banana","_","_"],
["_","apple","kiwi"],
["_","raspberry","strawberry"]
);
array_walk_recursive($base, function(&$v) {
if ($v === '_')
$v = 0;
});
Output becomes
Array
(
[0] => Array
(
[0] => orange
[1] => 0
[2] => banana
)
[1] => Array
(
[0] => banana
[1] => 0
[2] => 0
)
[2] => Array
(
[0] => 0
[1] => apple
[2] => kiwi
)
[3] => Array
(
[0] => 0
[1] => raspberry
[2] => strawberry
)
)
Live demo at https://3v4l.org/6Bs8ZE
You can replace _ with 0;
json_decode(str_replace('"_"','"0"',json_encode($base)));
I have a long string like this I1:1;I2:2;I8:2;NA1:5;IA1:[1,2,3,4,5];S1:asadada;SA1:[1,2,3,4,5];SA1:[1,2,3,4,5];. Now I just want to get certain words like 'I1','I2','I8','NA1' and so on i.e. words between ':'&';' only ,and store them in array. How to do that efficiently?
I have already tried using preg_split() and it works but giving me wrong output. As shown below.
// $a is the string I want to extract words from
$str = preg_split("/[;:]/", $a);
print_r($str);
The output I am getting is this
Array
(
[0] => I8
[1] => 2
[2] => I1
[3] => 1
[4] => I2
[5] => 2
[6] => I3
[7] => 2
[8] => I4
[9] => 4
[10] =>
)
Array
(
[0] => NA1
[1] => 5
[2] =>
)
Array
(
[0] => IA1
[1] => [1,2,3,4,5]
[2] =>
)
Array
(
[0] => S1
[1] => asadada
[2] =>
)
Array
(
[0] => SA1
[1] => [1,2,3,4,5]
[2] =>
)
But I am expecting 'I8','I1','I2','I3','I4' also in seperated array with position [0]. Any help on how to do this.
You could try something like.
<?php
$str = 'I1:1;I2:2;I8:2;NA1:5;IA1:[1,2,3,4,5];S1:asadada;SA1:[1,2,3,4,5];SA1:[1,2,3,4,5];';
preg_match_all('/(?:^|[;:])(\w+)/', $str, $result);
print_r($result[1]); // Matches are here in $result[1]
You can perform a greedy match to match the items between ; and : using preg_match_all()
<?php
$str = 'I1:1;I2:2;I8:2;NA1:5;IA1:[1,2,3,4,5];S1:asadada;SA1:[1,2,3,4,5];SA1:[1,2,3,4,5];';
preg_match_all('/;(.+?)\:/',$str,$matches);
print_r($matches[1]);
Live Demo: https://3v4l.org/eBsod
One possible approach is using a combination of explode() and implode(). The result is returned as a string, but you can easily put it into an array for example.
<?php
$input = "I1:1;I2:2;I8:2;NA1:5;IA1:[1,2,3,4,5];S1:asadada;SA1:[1,2,3,4,5];SA1:[1,2,3,4,5];.";
$output = array();
$array = explode(";", $input);
foreach($array as $item) {
$output[] = explode(":", $item)[0];
}
echo implode(",", $output);
?>
Output:
I1,I2,I8,NA1,IA1,S1,SA1,SA1,.
I have a string and I would like to explode with three differents patterns. The string looks like to :
country:00/00/00->link:00/00/00->link2
country2:00/00/00->link3:00/00/00->link4
I would like to get the differents parts of this two strings. The two lines are separated by a /n, the dates are separated by : and the link associated to date are separated with a ->
At the beginning I explode by the line break
$var = explode("\n", $var);
but when I tried to explode again this string, I get an error : *preg_split() expects parameter 2 to be string, array given*
How can I get the different parts ?
Thanks in advance.
Ideone link
Instead of using preg_split, consider using preg_match. You can write it as one big regex.
<?php
// Implicit newline. Adding \n would make an empty spot in the array
$str = "country:00/00/00->link:00/00/00->link2
country2:00/00/00->link3:00/00/00->link4";
$arr = split("\n", $str);
for ($i = 0; $i < count($arr); $i++) {
preg_match("/^(\w+)\:(\d\d\/\d\d\/\d\d)->(\w+)\:(\d\d\/\d\d\/\d\d)->(\w+)/", $arr[$i], $matches);
print_r($matches);
}
?>
Output:
Array
(
[0] => country:00/00/00->link:00/00/00->link2
[1] => country
[2] => 00/00/00
[3] => link
[4] => 00/00/00
[5] => link2
)
Array
(
[0] => country2:00/00/00->link3:00/00/00->link4
[1] => country2
[2] => 00/00/00
[3] => link3
[4] => 00/00/00
[5] => link4
)
EDIT
In your comment, you're posting dates with 4 digits, whereas in your question, they only had 2 digits.
Therefore you need to change the regex to:
/^(\w+)\:(\d\d\/\d\d\/\d\d\d\d)->(\w+)\:(\d\d\/\d\d\/\d\d\d\d)->(\w+)/
How about using preg_match_all:
<?php
$data =<<<ENDDATA
country:00/00/00->link:00/00/00->link2
country2:00/00/00->link3:00/00/00->link4
ENDDATA;
preg_match_all('#(\d{2}/\d{2}/\d{2})->(.[^:\n]+)#', $data, $matches);
print_r($matches);
Gives the following result:
Array
(
[0] => Array
(
[0] => 00/00/00->link
[1] => 00/00/00->link2
[2] => 00/00/00->link3
[3] => 00/00/00->link4
)
[1] => Array
(
[0] => 00/00/00
[1] => 00/00/00
[2] => 00/00/00
[3] => 00/00/00
)
[2] => Array
(
[0] => link
[1] => link2
[2] => link3
[3] => link4
)
)
your problem is that after using explode first time, it is turning into an array and explode function connat explode an array. You need to use a loop probablr for loop that targets array elemets then use explode function on those elements and you will have it.
See example Below:
<?php
$val="abc~~~def~~~ghi####jkl~~~mno~~~pqr###stu~~~vwx~~~yz1";
$val=explode("####", $val);
//result will be
$valWillBe=array(3) {
[0]=>'abc~~~def~~~ghi',
[1]=>'jkl~~~mno~~~pqr',
[2]=>'stu~~~vwx~~~yz1'
}
//if you want to explode again you use a loop
for($r=0; $r<sizeof($val); $r++){
$val[$r]=explode("~~~", $val[$r]);
}
//now you have your string exploded all in places.
?>
Edit: Thanks to #Felix Kling and #mario for pointing me towards named capture groups and PREG_SET_ORDER, I totally learned something today.
I'm curious about a better algorithm per se, though. So please just pretend that there's no preg_match() involved.
Edit 2: Abstracted question
While answering another question here, I stumbled upon the fact that my code for turning
this:
Array
(
[0] => Array (
[0] => 1
[1] => 3
)
[1] => Array (
[0] => Description text
[1] => Different Description text
)
[2] => Array (
[0] => 123.456.12
[1] => 234.567.89
)
[3] => Array (
[0] => 10.00
[1] => 10.00
)
[4] => Array (
[0] => 10.00
[1] => 30.00
)
)
into that:
Array
(
[0] => Array
(
[qty] => 1
[description] => "Description text"
[sku] => 123.456.12
[price] => 10.00
[total] => 10.00
)
…
)
is fugly:
$field_names = array('qty', 'description', 'sku', 'price', 'total');
$result_arr = array();
$num_iter = count(matches[0]);
for ($i = 0; $i < $num_iter; $i++) {
foreach ($field_names as $index => $field_name) {
$result_arr[$i][$field_name] = array_shift($input_arr[$index]);
}
}
Any suggestions for improvement?
There is one simpler way to produce the desired output.
while (count($input_arr[0])) {
$values = array_map("array_shift", & $input_arr);
$result_arr[] = array_combine($field_names, $values);
}
This won't work past PHP 5.3, as it requires forcibly passing a parameter by reference. (Avoiding any dumbing-down-the-language remarks here). But you can of course chop off the entries with a more elaborate manual loop at any time.
The real simplification for such cases is however array_combine to turn a list into an associative array.