I'm looking for the simplest way to take a single variable such as:
$variable = 'left,middle,right';
and write it to an array(); split at the commas.
$array = explode(',', $variable);
In case you string gets a little bit more complex (i.e. elements can be in quotes and both the delimiter and the quoting character can appear within an element) you might also be interested in fgetcsv() and str_getcsv()
$variable = '"left,right","middle", "up,down"';
$row = str_getcsv($variable);
var_dump($row);
prints
array(3) {
[0]=>
string(10) "left,right"
[1]=>
string(6) "middle"
[2]=>
string(7) "up,down"
}
you can also use preg_split()
$variable = 'left , middle, right';
print_r ( preg_split("/\s*,\s*/",$variable));
Related
So lets say I have an array and when I var_dump(); it, it has the following output:
[1]=>
string(20) "Name: Kevin"
[2]=>
string(20) "Age: 20"
Can I manipulate it using implode or explode so that the output would look like this:
[Name]=>
string(5) "Kevin"
[Age]=>
string(2) "20"
Any help would be appreciated.
You can use explode() with trim()
$array = [];
foreach($initialArray as $data){
$exploded = explode(':',$data);
$array[trim($exploded[0])] = trim($exploded[1]);
}
Output:-https://3v4l.org/3q0i5
I'm having trouble using explode() in php.
I want to make an array of strings from the $_GET super global array.
The url will be like:
example/myproject.php?keywords=this+is+an+example
I want an array of the keywords so it should be like this:
myArray(6) = { [0]=> string(4) "this"
[1]=> string(2) "is"
[2]=> string(2) "an"
[3]=> string(7) "example" }
Here's my code:
$stringVals = explode("+",($_GET['keywords']));
var_dump($stringVals);
Here's the output:
array(1) { [0]=> string(30) "this is an example of a string" }
An example that works:
$pizza = "piece1 piece2 piece3 piece4 piece5 piece6";
$pieces = explode(" ", $pizza);
var_dump($pieces);
The output of this:
array(6) { [0]=> string(6) "piece1" [1]=> string(6) "piece2" [2]=>
string(6) "piece3" [3]=> string(6) "piece4" [4]=> string(6) "piece5"
[5]=> string(6) "piece6" }
I want the words from $_GET like that..
The "+" sign you see is actually just an encoded space. Therefore, you can split it normally using a space.
explode(' ', $_GET['keywords']);
Make sure you sanitize it if you're going to put it in a database.
Actually you can simply use:
explode(" ", $_GET['string'])
The + sign in the url actually means a space, not plus :- )
It's because spaces aren't allowed in the urls (url cannot have whitespaces), so it's actually converted to a plus sign.
In a normal GET request, the + in the URL will be converted back to spaces by the web server, so you should be exploding on ' '.
$stringVars = explode(' ', $_GET['keywords']);
See https://stackoverflow.com/a/2678602/1331451 for an explanation of why that is the case.
$myarray = explode(" ", $_GET['keywords']);
var_dump($myArray);
How's that?
Don't use plus symbol because The "+" sign you see is actually just an encoded space. use comma in URL while passing values from one page to another page here is solution after sending them in URL using comma separated form :-
$myArray = explode(',', $_REQUEST['keywords']);
after this you can get your data as following
$myArray[0]=this;
$myArray[1]=is;
$myArray[2]=an;
$myArray[3]=example;
$url = 'example/myproject.php?keywords=this+is+an+example';
$x = parse_url($url);
$y = str_replace("keywords=", "", $x["query"]);
var_dump(explode("+", $y));
First parse the url, second remove keywords=, next explode what's left by + sign.
I have a block of text and a preg_match_all sequence to create an array ($matches) from certain elements in the text.
I then look up a corresponding entry for each string in the first array using mysqli and receive a second array - ($replacement).
I want to replace the first array's position in the original text with the second array, re-finding the first array and naming it $arraytoreplace. This is the code I use:
$replacement = array();
$myq = "SELECT code,title FROM messages WHERE ID=?";
if ($stmt = $mysqli2->prepare($myq)) {
foreach($matches[1] as $value) {
$stmt->bind_param("s", $value);
$stmt->execute();
// bind result variables
$stmt->bind_result($d,$cc);
if($stmt->fetch()) {
$replacement[] = '' . $cc . '';
}
}
$stmt->close();
}
If I use var_dump on the arrays before the str_replace like so:
var_dump($arraytoreplace);
var_dump($replacement);
I get:
array(4) {
[0]=> string(3) "111"
[1]=> string(2) "12"
[2]=> string(4) "1234"
[3]=> string(1) "0"
}
array(4) {
[0]=> string(5) "hello"
[1]=> string(2) "hi"
[2]=> string(3) "foo"
[3]=> string(3) "bar"
}
I then use str_replace to drop the second array into the first array's place in the original text.
Usually this is fine, but everything breaks once it hits the 10 string in an array mark.
Instead of Text hello text hi I'll get Text 11foo text foo1 or something equally bizarre.
Any ideas?
Edit: The code used for replacing the arrays as follows:
$messageprep = str_replace($arraytoreplace, $replacement, $messagebody);
$messagepostprep = str_replace('#', '', $messageprep);
echo '<div class="messagebody">' . $messagepostprep . '</div>';
It looks like your getting partial replacements when a string of numbers is contained inside a longer string, i.e. 23 inside 1234.
You need to do your replacements with a regular expression on the boundary of the search string. Something like...
$text = preg_replace("/\b" . $replace . "\b/", $value, $text);
Another possible solution would be to consider changing the values to replace so that they are padded with zeros...
Array(
[0] => string(3) "0111"
[1] => string(2) "0012"
[2] => string(4) "1234"
[3] => string(1) "0000"
)
...and make sure that your search strings are also padded with zeros, because 0012 will never be confused with 12 and accidentally found in 0123.
i need help. i was developed a page in smarty , i got a result set from a query and i need to change the result set to string and stored in text area
my query is given below
select val from test
my result set is print in var_dump in controller
{ [0]=> array(1) { ["val"]=> string(1) "c" } [1]=> array(1) { ["val"]=> string(3) "c++" } [2]=> array(1) { ["val"]=> string(4) "java" } [3]=> array(1) { ["val"]=> string(3) "PHP" } }
i need to change in to sting like c,c++,java,PHP
the changing function is preformed only controller
ple help me.. and thk adv
Use foreach for that. See more information here - http://php.net/manual/en/control-structures.foreach.php .
Example -
$array = Array("333", "222", "111");
foreach($array as $string) {
echo $string.'<br />';
}
Another solution would be to use implode.
See more information here - http://php.net/manual/en/function.implode.php and again a small example -
$array = Array("333", "222", "111");
$strings = implode(",", $array); // comma in first quotes are seperator, you can set it also to " " for a single space.
echo $strings; // In this case it will output 333,222,111 if you would set it to empty space then it would output 333 222 11
EDIT:
For writing in file you must use file functions.
Check this link - http://php.net/manual/en/function.file-put-contents.php
example -
// your file
$file = 'sample.txt';
$array = Array("333", "222", "111");
// Add all strings to $content.
foreach($array as $string) {
$content .= $string.'<br />';
}
// write everything in file
file_put_contents($file, $content);
Suggestion:
When you are writing SQL queries, I would suggest that you already now start learning to write them correctly, so they are easier to read.
For example, your query -
select val from test
Could be changed to -
SELECT `val` FROM `test`
which is alot easier to read and understand.
If You need to join all array with some delimeters, then use implode.
Example:
$arr = array("hi", "peter!", "how", "are", "you");
echo implode(" ", $arr) . "?";
//output
// hi peter! how are you?
If you want a string separated by commas, you must use the implode function
string implode ( string $glue , array $pieces )
glue: Defaults to an empty string. This is not the preferred usage of implode() as glue would be the second parameter and thus, the bad prototype would be used.
pieces:The array of strings to implode.
Returns a string containing a string representation of all the array elements in the same order, with the glue string between each element.
http://www.php.net/manual/en/function.implode.php
Example
$array = Array("333", "222", "111");
$string = explode(',', $array);
returns
"333,222,111"
if you want spaces:
$string = explode(' ', $array);
returns
"333 222 111"
I have this $str value :
[{\"firstname\":\"guest1\",\"lastname\":\"one\",\"age\":\"22\",\"gender\":\"Male\"},{\"firstname\":\"guest2\",\"lastname\":\"two\",\"age\":\"22\",\"gender\":\"Female\"}]
I want to split it into the following:
firstname:guest1,lastname:one,age:22
firstname:guest2,lastname:two,age:22
I tried explode (",",$str) , but it explode all using , as delimiter and I don't get what I want
anyone can help me ?
As Josh K points out, that looks suspiciously like a JSON string. Maybe you should do a json_decode() on it to get the actual data you're looking for, all organized nicely into an array of objects.
EDIT: it seems your string is itself wrapped in double quotes ", so you'll have to trim those away before you'll be able to decode it as valid JSON:
$str_json = trim($str, '"');
$guests = json_decode($str_json);
var_dump($guests);
I get this output with the var_dump(), so it's definitely valid JSON here:
array(2) {
[0]=>
object(stdClass)#1 (4) {
["firstname"]=>
string(6) "guest1"
["lastname"]=>
string(3) "one"
["age"]=>
string(2) "22"
["gender"]=>
string(4) "Male"
}
[1]=>
object(stdClass)#2 (4) {
["firstname"]=>
string(6) "guest2"
["lastname"]=>
string(3) "two"
["age"]=>
string(2) "22"
["gender"]=>
string(6) "Female"
}
}
JSON (JavaScript Object Notation) is not CSV (comma-separated values). They're two vastly different data formats, so you can't parse one like the other.
To get your two strings, use a loop to get the keys and values of each object, and then build the strings with those values:
foreach ($guests as $guest) {
$s = array();
foreach ($guest as $k => $v) {
if ($k == 'gender') break;
$s[] = "$k:$v";
}
echo implode(',', $s) . "\n";
}
Output:
firstname:guest1,lastname:one,age:22
firstname:guest2,lastname:two,age:22
(Assuming you do want to exclude the genders for whatever reason; if not, delete the if ($k == 'gender') break; line.)
If you split on ,'s then you will get all the other crap that surrounds it. You would then have to strip that off.
Looks a lot like JSON data to me, where is this string coming from?
If that is valid json, just run it through json_decode() to get a native php array...
Note that you may need to run it through stripslashes() first, as it appears you may have magic_quotes_gpc set... You can conditionally call it by checking with the function get_magic_quotes_gpc:
if (get_magic_quotes_gpc()) {
$_POST['foo'] = stripslashes($_POST['foo']);
}
$array = json_decode($_POST['foo']);
You need to use preg_replace function.
$ptn = "/,\\"gender\\":\\"\w+\\"\}\]?|\\"|\[?\{/";
$str = "[{\"firstname\":\"guest1\",\"lastname\":\"one\",\"age\":\"22\",\"gender\":\"Male\"},{\"firstname\":\"guest2\",\"lastname\":\"two\",\"age\":\"22\",\"gender\":\"Female\"}]";
$rpltxt = "";
echo preg_replace($ptn, $rpltxt, $str);
You can the php regular expression tester to test the result.
or use preg_match_all
$ptn = "/(firstname)\\":\\"(\w+)\\",\\"(lastname)\\":\\"(\w+)\\",\\"(age)\\":\\"(\d+)/";
$str = "[{\"firstname\":\"guest1\",\"lastname\":\"one\",\"age\":\"22\",\"gender\":\"Male\"},{\"firstname\":\"guest2\",\"lastname\":\"two\",\"age\":\"22\",\"gender\":\"Female\"}]";
preg_match_all($ptn, $str, $matches);
print_r($matches);
i still haven't get a chance to retrieve the JSON :
I var_dump the trimmed value as :
$str_json = trim($userdetails->other_guests, '"');
$guests = json_decode($str_json);
var_dump($str_json,$guests);
WHERE $userdetails->other_guests is the $str value I had before...
I get the following output :
string(169) "[{\"firstname\":\"guest1\",\"lastname\":\"one\",\"age\":\"22\",\"gender\":\"Male\"},{\"firstname\":\"guest2\",\"lastname\":\"two\",\"age\":\"23\",\"gender\":\"Female\"}]"
NULL
This mean the decoded json are NULL... strange