Seems to be very simple but I'm like, losing a lot of time on this... and no success...
If I have a string:
$str = "She sells seashells"
So I turn every word into an array element
$array = explode(" ", $str);
What I need is, every word receive the ancestor element (if any) and the next ones...
Example result in json format (more easy to show)
"{"She":["sells","seashells"],"sells":["She","seashells"],"seashells":["She","sells"]}"
Can somebody help?
Thanks!
Really, you can copy a source array for each key, excluding that key:
$str = "She sells seashells";
$array = explode(" ", $str);
$res = [];
for($i = 0; $i < count($array); $i++) {
$res[$array[$i]] = $array;
unset($res[$array[$i]][$i]);
}
print_r($res);
demo
<?php
$str = "She sells seashells";
$arr = explode(" ",$str);
$length = count($arr);
$result = [];
for($i = 0;$i < $length;++$i){
$result[$arr[$i]] = [];
foreach ($arr as $each_val) {
if($each_val === $arr[$i]) continue;
$result[$arr[$i]][] = $each_val;
}
}
echo json_encode($result);
OUTPUT:
{"She":["sells","seashells"],"sells":["She","seashells"],"seashells":["She","sells"]}
Explode the string based on spaces.
Have a result array and make the current iteration value in for loop as the key for it.
Loop again over the array and check if current value matches with outer for loop value. If yes, then continue, else add that value in this result array key.
In the end, json_encode() it and you are done.
Related
I have a string of delimited numerical values just like this:
5|2288|502|4208|55|23217|235|10|3845|19053|1885|61|324|9004| ...etc.
Depending on the circumstance, the string may have only 1 value, 15 values, all the way up to 100s of values, all pipe delimited.
I need to count off (and keep/echo) the first 10 values and truncate everything else after that.
I've been looking at all the PHP string functions, but have been unsuccessful in finding a method to handle this directly.
Use explode() to separate the elements into an array, then you can slice off the first 10, and implode() them to create the new string.
$arr = "5|2288|502|4208|55|23217|235|10|3845|19053|1885|61|324|9004";
$a = explode ('|',$arr);
$b = array_slice($a,0,10);
$c = implode('|', $b);
Use PHP Explode function
$arr = explode("|",$str);
It will break complete string into an array.
EG: arr[0] = 5, arr[1] = 2288 .....
I would use explode to separate the string into an array then echo the first ten results like this
$string = "5|2288|502|4208|55|23217|235|10|3845|19053|1885|61|324|9004";
$arr = explode("|", $string);
for($i = 0; $i < 10; $i++){
echo $arr[$i];
}
Please try below code
$str = '5|2288|502|4208|55|23217|235|10|3845|19053|1885|61|324';
$arrayString = explode('|', $str);
$cnt = 0;
$finalVar = '';
foreach ($arrayString as $data) {
if ($cnt > 10) {
break;
}
$finalVar .= $data . '|';
$cnt++;
}
$finalVar = rtrim($finalVar, '|');
echo $finalVar;
Example:
thisisline>and>1
thisisanother>line>something>13
just>another>line>143
short>11
I have this kind of data in my database on column 'profile'. What I need is to pick columns user_name and profile from the database where profile has the 5 highest values after the last occurance of the '>'
First you have to extract the numbers from your lines. Afterwards, order them and take the ones you want.
$lines = "thisisline>and>1
thisisanother>line>something>13
just>another>line>143
short>11";
$tmp = explode("\n", $lines); //separate lines
$numbers = array();
foreach($tmp as $line)
{
$numbers[] = substr($line, strrpos($line, ">") + 1); //extract number
}
rsort($numbers); //order your results
$count = 2; //define the count of results
$result = array_slice($numbers, 0, $count); //just take the ones which you want
var_dump($result);
You'll get your result as an array.
Working example here in a php sandbox.
Do like this.
Get all lines into an array, parse them, store the last value in an array, sort it revrse mode, and do what you want.
$lines = 'thisisline>and>1
thisisanother>line>something>13
just>another>line>143
short>11';
define('NUM_TO_GET', 2); //Get the two highest. Rewrite it to 5!
$array = explode("\n", $lines);
$results = array();
foreach ($array as $line) {
$tmp = explode('>', $line);
$results [] = $tmp[count($tmp) - 1];
}
rsort($results);
for ($i = 0; $i < NUM_TO_GET; $i++) {
if (isset($results[$i])) {
echo $results[$i] . "<br />";
} else {
break;
}
}
$theNumber = substr($string, strrpos($string, ">")+1);
This should give you the number for each line. Then, you just compare the numbers.
I am trying to use a for loop where it looks through an array and tries to make sure the same element is not used twice. For example, if $r or the random variable is assigned the number "3", my final array list will find the value associated with wordList[3] and add it. When the loop runs again, I don't want $r to use 3 again. Example output: 122234, where I would want something along the lines of 132456. Thanks in advance for the help.
for($i = 0; $i < $numWords; $i++){
$r = rand(0, $numWords);
$arrayTrack[$i] == $r;
$wordList[$r] = $finalArray[$i];
for($j = 0; $j <= $i; $j++){
if($arrayTrack[$j] == $r){
# Not sure what to do here. If $r is 9 once, I do not want it to be 9 again.
# I wrote this so that $r will never repeat itself
break;
}
}
Edited for clarity.
Pretty sure you are over complicating things. Try this, using array_rand():
$final_array = array();
$rand_keys = array_rand($wordList, $numWords);
foreach ($rand_keys as $key) {
$final_array[] = $wordList[$key];
}
If $numWords is 9, this will give you 9 random, unique elements from $wordList.
See demo
$range = range(0, $numWords - 1); // may be without -1, it depends..
shuffle($range);
for($i = 0; $i < $numWords; $i++) {
$r = array_pop($range);
$wordList[$r] = $finalArray[$i];
}
I do not know why you want it.. may be it is easier to shuffle($finalArray);??
So ideally "abcdefghi" in some random order.
$letters = str_split('abcdefghi');
shuffle($letters);
var_dump($letters);
ps: if you have hardcoded array $wordList and you want to take first $n elements of it and shuffle then (if this is not an associative array and you do not care about the keys)
$newArray = array_slice($wordList, 0, $n);
shuffle($newArray);
var_dump($newArray);
You can try array_rand and unset
For example:
$array = array('one','two','free','four','five');
$count = count($array);
for($i=0;$i<$count;$i++)
{
$b = array_rand($array);
echo $array[$b].'<br />';
unset($array[$b]);
}
after you have brought the data in the array, you purify and simultaneously removing the memory array
Ok... I have NO idea why you are trying to use so many variables with this.
I certainly, have no clue what you were using $arrayTrack for.
There is a very good chance I am mis-understanding all of this though.
<?php
$numWords=10;
$wordList=array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z');
$finalArray=array();
for ($i=0; $i<$numWords; $i++) {
start:
$r=rand(0,$numWords);
$wordChoice=$wordList[$r];
foreach ($finalArray as $word) {
if ($word==$wordChoice) goto start;
}
$finalArray[]=$wordChoice;
}
echo "Result: ".implode(',',$finalArray)."\n";
I have a array of say 50 elements. This array can be of size anything.
I want to have the first 10 elements of the array in a string.
I have the program as:
$array1= array("itself", "aith","Inside","Engineer","cooool","that","it","because");
$i=0;
for($f=0; $f < sizeof(array1); $f++)
{
$temparry = $temparry.array1[$f];
if(($f%10) == 0 && ($f !== 0))
{
$temparray[$i] = $temparray;
$i++;
}
}
==
so that at the end:
I get
temparray1= first 10 elements
temparray2 - next 10 elemnts...
I am not what I am missing in my loops.
After reading your comment, I think you want array_chunk [docs]:
$chunks = array_chunk($array1, 10);
This will create a multidimensional array with each element being an array containing 10 elements.
If you still want to join them to a string, you can use array_map [docs] and implode [docs]:
$strings = array_map('implode', $chunks);
This gives you an array of strings, where each element is the concatenation of a chunk.
This is something you can easily do with array_splice and implode.
Example:
<?php
$array = range(1, 50);
while ( $extracted = array_splice($array, 0, 10) )
{
// You could also assign this to a variable instead of outputting it.
echo implode(' ', $extracted);
}
all you are doing here is creating a temporary value and then deleting it. To save it into a string:
$myArray = array("itself", "aith","Inside","Engineer",
"cooool","that","it","because");
$myString = '';
for($i = 0; $i < 10; $i++) {
$myString .= $myArray[$i];
}
You could also run that inside of another for loop that would run through the entire array giving you ten-element increments.
Actually you can use arrray_slice and implode functions like this:
// put first 10 elements into array output
$output = array_slice($myArray, 10);
// implode the 10 elements into a string
$str = implode("", $output);
OP's fixed code as per comments below:
$array1= array("itself","aith","Inside","Engineer","cooool","that","it","because");
$temparry='';
$temparray = array();
for($f=0; $f < count($array1); $f++)
{
$temparry = $temparry.$array1[$f];
if(($f%3) == 0 && ($f !== 0))
{
$temparray[] = $temparry;
$temparry = '';
}
}
print_r($temparray);
We are trying to get certain parts of a String.
We have the string:
location:32:DaD+LoC:102AD:Ammount:294
And we would like to put the information in different strings. For example $location=32 and $Dad+Loc=102AD
The values vary per string but it will always have this construction:
location:{number}:DaD+LoC:{code}:Ammount:{number}
So... how do we get those values?
That would produce what you want, but for example $dad+Loc is an invalid variable name in PHP so it wont work the way you want it, better work with an array or an stdClass Object instead of single variables.
$string = "location:32:DaD+LoC:102AD:Ammount:294";
$stringParts = explode(":",$string);
$variableHolder = array();
for($i = 0;$i <= count($stringParts);$i = $i+2){
${$stringParts[$i]} = $stringParts[$i+1];
}
var_dump($location,$DaD+LoC,$Ammount);
Easy fast forward approach:
$string = "location:32:DaD+LoC:102AD:Ammount:294";
$arr = explode(":",$string);
$location= $arr[1];
$DaD_LoC= $arr[3];
$Ammount= $arr[5];
$StringArray = explode ( ":" , $string)
By using preg_split and mapping the resulting array into an associative one.
Like this:
$str = 'location:32:DaD+LoC:102AD:Ammount:294';
$list = preg_split('/:/', $str);
$result = array();
for ($i = 0; $i < sizeof($list); $i = $i+2) {
$result[$array[$i]] = $array[$i+1];
};
print_r($result);
it seems nobody can do it properly
$string = "location:32:DaD+LoC:102AD:Ammount:294";
list(,$location,, $dadloc,,$amount) = explode(':', $string);
the php function split is deprecated so instead of this it is recommended to use preg_split or explode.
very useful in this case is the function list():
list($location, $Dad_Loc, $ammount) = explode(':', $string);
EDIT:
my code has an error:
list(,$location,, $Dad_Loc,, $ammount) = explode(':', $string);