I have single field that allows the user to input different options in one string. So, 13123123|540|450
How would I parse out those three values into three variables?
You can use list to put them into three distinct variables:
$str = '13123123|540|450';
list($one, $two, $three) = explode('|', $str);
Alternatively, you can just access them via the array indicies if you wanted to:
$str = '13123123|540|450';
$split = explode('|', $str);
// $split[0] == 13123123
You can try the following methods:
$input = #$_POST["field"];
// Method 1: An array
$options = explode ("|", $input);
/*
The $options variable will now have the following:
$options[0] = "13123123";
$options[1] = "540";
$options[2] = "450";
*/
// Method 2: Assign to different variables:
list($opt1, $opt2, $opt3) = explode ("|", $input);
/*
The variables will now have the following:
$opt1 = "13123123";
$opt2 = "540";
$opt3 = "450";
*/
// Method 3: Regular expression:
preg_match ("/(\w*)|(\w*)|(\w*)/i", $string, $matches);
/*
The $options variable will now have the following:
$matches[0] = "13123123";
$matches[1] = "540";
$matches[2] = "450";
*/
Use regex based on the numbers before each |. So something along the lines of [\d{8}]^\|] for the first one and so on.
Related
Suppose I have a string:
$str="1,3,6,4,0,5";
Now user inputs 3.
I want that to remove 3 from the above string such that above string should become:
$str_mod="1,6,4,0,5";
Is there any function to do the above?
You can split it up, remove the one you want then whack it back together:
$str = "1,3,6,4,0,5";
$userInput = 3;
$bits = explode(',', $str);
$result = array_diff($bits, array($userInput));
echo implode(',', $result); // 1,6,4,0,5
Bonus: Make $userInput an array at the definition to take multiple values out.
preg_replace('/\d[\D*]/','','1,2,3,4,5,6');
in place of \d just place your digit php
If you don't want to do string manipulations, you can split the string into multiple pieces, remove the ones you don't need, and join the components back:
$numberToDelete = 3;
$arr = explode(',',$string);
while(($idx = array_search($numberToDelete, $components)) !== false) {
unset($components[$idx]);
}
$string = implode(',', $components);
The above code will remove all occurrences of 3, if you want only the first one yo be removed you can replace the while by an if.
I have a string like this [tubelist dijfisj, ijdsifjad, ajkdfksd, sdjfkdf] and I would like to separate them into two ###URL### and ###URL2###.
This is the code I got so far
function xyz_plugin_callback($match)
{
$tag_parts = explode(",", rtrim($match[0], "]"));
$output = YOUX_TARGET;
$output = str_replace("###URL###", $tag_parts[1], $output);
$output = str_replace("###URL2###", $tag_parts[2], $output);
}
$match is the variable that I'm passing in.
You can utilize regular expressions here.
So if you do something like:
$temp_match = trim($match[0], "[]");
$urls = array();
preg_match("/([\w\s]*),([\w\s]*),.*/", $temp_match, $urls);
$url1 = $urls[1];
$url2 = $urls[2];
// do your $output str_replace here.
finally, I got it working! Here is the working code.
$tag_parts1 = explode(" ", rtrim($match[0], "]"));
$tag_parts = explode(",",$tag_parts1[1],2);
the first line will strip the [tubelist and ].
the second line with store the first set of value in array[0] and the rest to [1].
voila, case resolved.
I have a string that looks a little like this, world:region:bash
It divides folder names, so i can create a path for FTP functions.
However, i need at some points to be able to remove the last part of the string, so, for example
I have this world:region:bash
I need to get this world:region
The script wont be able to know what the folder names are, so some how it needs to be able to remove the string after the last colon.
$res=substr($input,0,strrpos($input,':'));
I should probably highlight that strrpos not strpos finds last occurrence of a substring in given string
$tokens = explode(':', $string); // split string on :
array_pop($tokens); // get rid of last element
$newString = implode(':', $tokens); // wrap back
You may want to try something like this:
<?php
$variable = "world:region:bash";
$colpos = strrpos($variable, ":");
$result = substr($variable, 0, $colpos);
echo $result;
?>
Or... if you create a function using this information, you get this:
<?php
function StrRemoveLastPart($string, $delimiter)
{
$lastdelpos = strrpos($string, $delimiter);
$result = substr($string, 0, $lastdelpos);
return $result;
}
$variable = "world:region:bash";
$result = StrRemoveLastPart($variable, ":");
?>
Explode the string, and remove the last element.
If you need the string again, use implode.
$items = array_pop(explode(':', $the_path));
$shotpath = implode(':', $items);
Use regular expression /:[^:]+$/, preg_replace
$s = "world:region:bash";
$p = "/:[^:]+$/";
$r = '';
echo preg_replace($p, $r, $s);
demo
Notice how $ which means string termination, is made use of.
<?php
$string = 'world:region:bash';
$string = implode(':', explode(':', $string, -1));
So I have a list of values like that goes like this:
values: n,b,f,d,e,b,f,ff`
I want to use preg_replace() in order to remove the repeated characters from the list of values (it will be inserted to a MySQL table). b and f are repeated. ff should not count as f because it's a different value. I know that \b \b will be used for that. I am not sure on how to take out the repeated b and f values as well as the , that precedes each value.
If the list is in a string looking like the example above, a regex is overkill. This does it just as well;
$value = implode(',', array_unique(explode(',', $value)));
I agree with other commenters that preg_replace is not the way to go; but, since you ask, you can write:
$str = preg_replace('/\b(\w+),(?=.*\b\1\b)/', '', $str);
That will remove all but the last instance of a given list-element.
No need for regex for this:
join(",", array_unique(split(",", $values)))
If this list you're dealing with is a simple string, a possible solution would be like this:
function removeDuplicates($str) {
$arr = explode(',', $str);
$arr = array_unique($arr);
return implode(',', $arr);
}
$values = removeDuplicates('n,b,f,d,e,b,f,ff'); // n,b,f,d,e,ff
$str = "values: n,b,f,d,e,b,f,ff";
$arr = array();
preg_match("/(values: )([a-z,]+)/i", $str, $match);
$values = explode(",", $match[2]);
foreach($values AS $value){
if(!$arr[$value]) $arr[$value] = true;
}
$return = $match[1];
foreach($arr AS $a){
$return .= ($i++ >= 1 ? "," : "").$a;
}
$data = "google,bing,searchengine,seo,search";
$exp = explode(",",$data);
$filtr = array("google","bing");
$fdat = str_replace($filtr,"",$data);
$clean = implode(",",$fdat);
echo $clean;
this gives out put ,,searchengine,seo,search
How can I get rid of first two blank commas?
Better get the difference of your splitted arrays $exp minus $filtr:
$clean = implode(',', array_diff($exp, $filtr));
This will also avoid the chance that you will only remove a substring of another word like when removing car from bike,car,carpet should result in bike,carpet and not in bike,pet.
And if you want to allow whitespace before and after each word, consider using trim and preg_split:
$exp = preg_split('/\s*,\s*/', trim($data));
trim will remove any preceding and trailing whitespace and the pattern for preg_split allows whitespace surrounding the comma too.
I'm getting an error when trying this code you did. You can use the following to remove google & bing (that are in an array) from a comma separated string:
$data = "google,bing,searchengine,seo,search";
$exp = explode(",",$data);
$filtr = array("google","bing");
$diff = array_diff($exp, $filtr);
$clean = implode(",",$diff);
echo $clean;
Your piece of code could also look like this:
$data = "google,bing,searchengine,seo,search";
$exp = explode(",",$data);
$filtr = array("google","bing");
foreach ($exp as $key => $item) {
if (in_array($key, $filtr)) unset($exp[$key]);
}
$clean = implode(",",$exp);
echo $clean;
Its useful when there is few items in $data. For big arrays it would need optimizing.
You would be better if checking the value within a loop like so:
$data = "google,bing,searchengine,seo,search";
$exp = explode(",",$data);
$filtr = array("google","bing");
foreach($exp as $k => $v)
{
if(in_array($v,$filtr))
{
unset($ext[$k]);
}
}
$clean = implode(",",$ext);
echo $clean;