i am working on a module where i have stored string in a column separated by comma(,) and i have split the string into an array and added the array into drop down, but when i am doing this with multiple columns, its not sorting the array in dropdown
here is the code
$pp=DB::table('gcp_projects')->where('niche','!=',' ')->where('niche','!=','')->where('niche','!=',null)->orderBy('niche')->pluck('niche');
$testing=explode(",",$pp);
$arr=array();
$tttt=array();
for($i=0;$i<=count($pp);$i++)
{
$arr= explode(",",$pp);
$temp = preg_replace("/[^a-zA-Z 0-9]+/", "", $arr);
$tttt=array_unique($temp);
sort($tttt);
}
<?php
// Use preg_split() function
$string = "123,456,78,000";
$str_arr = preg_split ("/\,/", $string);
print_r($str_arr);
// use of explode
$string = "123,46,78,000";
$str_arr = explode (",", $string);
print_r($str_arr);
?>
you can do it like this and use sort option like
$values = array ("zercggj.co.uk", "lkjhg.org.au", "qqxze.org.au",
"bfhgj.co.uk", "sdfgh.org.uk");
echo "<br>input:<br>";
foreach ($values as $host) echo "$host<br>";
// create a suitable structure
foreach ($values as $host)
{
$split = explode('.', $host, 2);
$printable[$split[1]][] = $split[0];
}
// sort by domains
asort ($printable);
// output
echo "<br>sorted:<br>";
foreach ($printable as $domain => $hosts)
{
echo "domain: $domain<br>";
// sort hosts within the current domain
asort ($hosts);
// display them
foreach ($hosts as $host)
echo "--- $host<br>";
}
So Far i found this solution which is working for me
$pp=DB::table('gcp_projects')->whereNotNull('niche')->orderBy('niche')->pluck('niche')->toArray();
$aa=implode(',',$pp);
$myArray = explode(',', $aa);
$im=implode(' ',$myArray);
$ex=explode(' ',$im);
$tttt=array_unique($ex);
sort($tttt);
$str = preg_replace("/[^a-zA-Z 0-9]+/", "", $tttt);
$result = array_filter($str);
you have to mention orderby ASC OR DESC
orderBy('created_at', 'asc') Or orderBy('created_at', 'asc')
This question already has answers here:
Explode a string to associative array without using loops? [duplicate]
(10 answers)
Closed 7 months ago.
I have a PHP string separated by characters like this :
$str = "var1,'Hello'|var2,'World'|";
I use explode function and split my string in array like this :
$sub_str = explode("|", $str);
and it returns:
$substr[0] = "var1,'hello'";
$substr[1] = "var2,'world'";
Is there any way to explode $substr in array with this condition:
first part of $substr is array index and second part of $substr is variable?
example :
$new_substr = array();
$new_substr["var1"] = 'hello';
$new_substr["var2"] = 'world';
and when I called my $new_substr it return just result ?
example :
echo $new_substr["var1"];
and return : hello
try this code:
$str = "var1,'Hello'|var2,'World'|";
$sub_str = explode("|", $str);
$array = [];
foreach ($sub_str as $string) {
$data = explode(',', $string);
if(isset($data[0]) && !empty($data[0])){
$array[$data[0]] = $data[1];
}
}
You can do this using preg_match_all to extract the keys and values, then using array_combine to put them together:
$str = "var1,'Hello'|var2,'World'|";
preg_match_all('/(?:^|\|)([^,]+),([^\|]+(?=\||$))/', $str, $matches);
$new_substr = array_combine($matches[1], $matches[2]);
print_r($new_substr);
Output:
Array (
[var1] => 'Hello'
[var2] => 'World'
)
Demo on 3v4l.org
You can do it with explode(), str_replace() functions.
The Steps are simple:
1) Split the string into two segments with |, this will form an array with two elements.
2) Loop over the splitted array.
3) Replace single quotes as not required.
4) Replace the foreach current element with comma (,)
5) Now, we have keys and values separated.
6) Append it to an array.
7) Enjoy!!!
Code:
<?php
$string = "var1,'Hello'|var2,'World'|";
$finalArray = array();
$asArr = explode('|', $string );
$find = ["'",];
$replace = [''];
foreach( $asArr as $val ){
$val = str_replace($find, $replace, $val);
$tmp = explode( ',', $val );
if (! empty($tmp[0]) && ! empty($tmp[1])) {
$finalArray[ $tmp[0] ] = $tmp[1];
}
}
echo '<pre>';print_r($finalArray);echo '</pre>';
Output:
Array
(
[var1] => Hello
[var2] => World
)
See it live:
Try this code:
$str = "var1,'Hello'|var2,'World'|";
$sub_str = explode("|", $str);
$new_str = array();
foreach ( $sub_str as $row ) {
$test_str = explode( ',', $row );
if ( 2 == count( $test_str ) ) {
$new_str[$test_str[0]] = str_replace("'", "", $test_str[1] );
}
}
print $new_str['var1'] . ' ' . $new_str['var2'];
Just exploding your $sub_str with the comma in a loop and replacing single quote from the value to provide the expected result.
I am doing an assignment on how to take a string of text separated by commas and reverse the individual words and return the words in the same order.
This code does that but it is not returning it as a string for some reason and i do not understand.
<?php
function bassAckwards($input)
{
// YOUR CODE HERE
$commas = substr_count($input, ",");
$NumWords = ($commas + 1);
$words = array($input);
for($x=0;$x<$NumWords;$x++)
{
$answer = array(strrev($words[$x]));
$answer = implode(",",$answer);
print $answer;
}
}
?>
function bassAckwards($str){
$words = explode(',', $str);
$reversedWords = array_map('strrev', $words);
return implode(',', $reversedWords);
}
var_dump(bassAckwards('foo,bar,baz')); // string(11) "oof,rab,zab"
Save yourself some headaches and use the built-it functions.
explode
make 'foo,bar,baz' => array('foo','bar','baz')
array_map & strrev
Execute strrev (string reverse) on every element of the array with array_map and return the [modified] array back.
implode
convert the array back to a csv.
$reversedWords = array();
// Explode by commas
$words = explode(',', $input);
foreach ($word in $words) {
// For each word
// Stack it, reversed, in the new array $reversedWords
$reversedWords[] = strrev($word);
}
// Implode by commas
$output = implode(',', $reversedWords);
print $output;
I need to check if there are only comas and spaces left in array and if that is the case to empty or destroy array. How can I do this?
For example I have an array like this:
$array = (, , , ,)
Have a look at my function:
// my magic function
function array_contains_only(&$array, &$matches) {
$tmp = 0;
// loop through array
foreach($array as $key => $val) {
// check if value matches one of the matches
// if so, increment $tmp
if(in_array($val, $matches)) $tmp++;
}
// check if $tmp equals the length of $array,
// if so, the array contains $matches only
return (count($array) === $tmp);
}
Usage:
// dummy arrays
$demo1 = array(' ', ',', ' ', ',', ',');
$demo1 = array(' ', ',', ' ', ',', ',', '123');
// characters to match
$chars = array(' ', ',');
// check $demo1
if(array_contains_only($demo1, $chars)) $demo1 = array(); // create new array
// check $demo2
if(array_contains_only($demo2, $chars)) $demo2 = array(); // create new array
print_r($demo1); // new, empty array
print_r($demo2); // old array
$array = array(NULL, NULL, NULL, NULL, NULL);
$result = array_filter(
$array,
function ($value) {
return !is_null($value);
}
);
var_dump($result);
Without foreach,
how can I turn an array like this
array("item1"=>"object1", "item2"=>"object2",......."item-n"=>"object-n");
to a string like this
item1='object1', item2='object2',.... item-n='object-n'
I thought about implode() already, but it doesn't implode the key with it.
If foreach it necessary, is it possible to not nest the foreach?
EDIT: I've changed the string
EDIT2/UPDATE:
This question was asked quite a while ago. At that time, I wanted to write everything in one line so I would use ternary operators and nest built in function calls in favor of foreach. That was not a good practice! Write code that is readable, whether it is concise or not doesn't matter that much.
In this case: putting the foreach in a function will be much more readable and modular than writing a one-liner(Even though all the answers are great!).
You could use http_build_query, like this:
<?php
$a=array("item1"=>"object1", "item2"=>"object2");
echo http_build_query($a,'',', ');
?>
Output:
item1=object1, item2=object2
Demo
and another way:
$input = array(
'item1' => 'object1',
'item2' => 'object2',
'item-n' => 'object-n'
);
$output = implode(', ', array_map(
function ($v, $k) {
if(is_array($v)){
return $k.'[]='.implode('&'.$k.'[]=', $v);
}else{
return $k.'='.$v;
}
},
$input,
array_keys($input)
));
or:
$output = implode(', ', array_map(
function ($v, $k) { return sprintf("%s='%s'", $k, $v); },
$input,
array_keys($input)
));
I spent measurements (100000 iterations), what fastest way to glue an associative array?
Objective: To obtain a line of 1,000 items, in this format: "key:value,key2:value2"
We have array (for example):
$array = [
'test0' => 344,
'test1' => 235,
'test2' => 876,
...
];
Test number one:
Use http_build_query and str_replace:
str_replace('=', ':', http_build_query($array, null, ','));
Average time to implode 1000 elements: 0.00012930955084904
Test number two:
Use array_map and implode:
implode(',', array_map(
function ($v, $k) {
return $k.':'.$v;
},
$array,
array_keys($array)
));
Average time to implode 1000 elements: 0.0004890081976675
Test number three:
Use array_walk and implode:
array_walk($array,
function (&$v, $k) {
$v = $k.':'.$v;
}
);
implode(',', $array);
Average time to implode 1000 elements: 0.0003874126245348
Test number four:
Use foreach:
$str = '';
foreach($array as $key=>$item) {
$str .= $key.':'.$item.',';
}
rtrim($str, ',');
Average time to implode 1000 elements: 0.00026632803902445
I can conclude that the best way to glue the array - use http_build_query and str_replace
I would use serialize() or json_encode().
While it won't give your the exact result string you want, it would be much easier to encode/store/retrieve/decode later on.
Using array_walk
$a = array("item1"=>"object1", "item2"=>"object2","item-n"=>"object-n");
$r=array();
array_walk($a, create_function('$b, $c', 'global $r; $r[]="$c=$b";'));
echo implode(', ', $r);
IDEONE
You could use PHP's array_reduce as well,
$a = ['Name' => 'Last Name'];
function acc($acc,$k)use($a){ return $acc .= $k.":".$a[$k].",";}
$imploded = array_reduce(array_keys($a), "acc");
Change
- return substr($result, (-1 * strlen($glue)));
+ return substr($result, 0, -1 * strlen($glue));
if you want to resive the entire String without the last $glue
function key_implode(&$array, $glue) {
$result = "";
foreach ($array as $key => $value) {
$result .= $key . "=" . $value . $glue;
}
return substr($result, (-1 * strlen($glue)));
}
And the usage:
$str = key_implode($yourArray, ",");
For debugging purposes. Recursive write an array of nested arrays to a string.
Used foreach. Function stores National Language characters.
function q($input)
{
$glue = ', ';
$function = function ($v, $k) use (&$function, $glue) {
if (is_array($v)) {
$arr = [];
foreach ($v as $key => $value) {
$arr[] = $function($value, $key);
}
$result = "{" . implode($glue, $arr) . "}";
} else {
$result = sprintf("%s=\"%s\"", $k, var_export($v, true));
}
return $result;
};
return implode($glue, array_map($function, $input, array_keys($input))) . "\n";
}
Here is a simple example, using class:
$input = array(
'element1' => 'value1',
'element2' => 'value2',
'element3' => 'value3'
);
echo FlatData::flatArray($input,', ', '=');
class FlatData
{
public static function flatArray(array $input = array(), $separator_elements = ', ', $separator = ': ')
{
$output = implode($separator_elements, array_map(
function ($v, $k, $s) {
return sprintf("%s{$s}%s", $k, $v);
},
$input,
array_keys($input),
array_fill(0, count($input), $separator)
));
return $output;
}
}
For create mysql where conditions from array
$sWheres = array('item1' => 'object1',
'item2' => 'object2',
'item3' => 1,
'item4' => array(4,5),
'item5' => array('object3','object4'));
$sWhere = '';
if(!empty($sWheres)){
$sWhereConditions = array();
foreach ($sWheres as $key => $value){
if(!empty($value)){
if(is_array($value)){
$value = array_filter($value); // For remove blank values from array
if(!empty($value)){
array_walk($value, function(&$item){ $item = sprintf("'%s'", $item); }); // For make value string type 'string'
$sWhereConditions[] = sprintf("%s in (%s)", $key, implode(', ', $value));
}
}else{
$sWhereConditions[] = sprintf("%s='%s'", $key, $value);
}
}
}
if(!empty($sWhereConditions)){
$sWhere .= "(".implode(' AND ', $sWhereConditions).")";
}
}
echo $sWhere; // (item1='object1' AND item2='object2' AND item3='1' AND item4 in ('4', '5') AND item5 in ('object3', 'object4'))
Short one:
$string = implode('; ', array_map(fn($k, $v) => "$k=$v", array_keys($array), $array));
Using explode to get an array from any string is always OK, because array is an always in standard structure.
But about array to string, is there any reason to use predefined string in codes? while the string SHOULD be in any format to use!
The good point of foreach is that you can create the string AS YOU NEED IT!
I'd suggest still using foreach quiet readable and clean.
$list = array('a'=>'1', 'b'=>'2', 'c'=>'3');
$sql_val = array();
foreach ($list as $key => $value) {
$sql_val[] = "(" . $key . ", '" . $value . "') ";
}
$sql_val = implode(', ', $sql_val);
with results:
(a, '1') , (b, '2') , (c, '3')
|
(a: '1') , (b: '2') , (c: '3')
|
a:'1' , b:'2' , c:'3'
etc.
Also if the question is outdated and the solution not requested anymore, I just found myself in the need of printing an array for debugging purposes (throwing an exception and showing the array that caused the problem).
For this reason, I anyway propose my simple solution (one line, like originally asked):
$array = ['a very' => ['complex' => 'array']];
$imploded = var_export($array, true);
This will return the exported var instead of directly printing it on the screen and the var $imploded will contain the full export.