i'm storing data in a database column like this.
1920,1927,3772,6127,3671
and i want to extract this value to variable as many as they are.
$var1 = 1920
$var2= 1927
$var3= 3772
$var4= 6127
$var5= 3671
and automatically read any new value WHILE there is "," comma and add it to a new var
Try something like this :
$vars = '1920,1927,3772,6127,3671';
$array_vars = explode(",",$vars);
foreach($array_vars as $key => $value){
${'var' . $key} = $value;
}
echo $var1;
Use explode function
$values = "1920,1927,3772,6127,3671";
$split_to_var = explode(',', $values);
$var1 = $split_to_var[0] ; // first one
echo $var1; // Returns 1920
It's not a very good idea to store them like this, but you can do it with explode.
$ar = explode(',',$initial_var);
Now you have the $ar array with all values and you can access them as $ar[1], $ar[2] etc.
You can use explode. something like below
$str = '1920,1927,3772,6127,3671';
$arr = explode(',' , $str);
//var_dump($arr);
For accessing the values use foreach
foreach($arr as $val){
//echo $val;
}
or
$var1 = $arr[0];
$var2 = $arr[1];
$var3 = $arr[2];
$var4 = $arr[3];
$var5 = $arr[4];
It is bad relational database technique to store information in this way. Break it into a separate table with a foreign key. This will make querying a lot easier and you won't have to worry about breaking up the string.
Related
how do i plug out the numbers in the string in php and store it in different variables
$var = '["3","4","5"]';
Expected Result:
$var1=3;
$var2=4;
$var3=5;
Actually there are many ways to do it with loop, list, extract and others etc. You can try with PHP list() to make variables out of your array values.
<?php
$var=["3","4","5"];
// Listing all the variables
list($var1, $var2, $var3) = $var;
echo "var1 is $var1, var2 is $var2 and var3 is $var3. \n";
?>
DEMO: https://3v4l.org/8sDdI
with extract() slightly modify your array
<?php
$array = array("var1" => "3","var2" => "4", "var3" => "5");
extract($array);
echo "\$var1 = $var1; \$var2 = $var2; \$var3 = $var3";
?>
DEMO: https://3v4l.org/hG3PX
You can easily convert the type :
$var=["3","4","5"];
$var1 = (int)$var[0];
$var2 = (int)$var[1];
$var3 = (int)$var[2];
Try this:
$i = 1;
$var=array("3","4","5");
foreach($var as $value){
${'var'.$i} = $value;
$i++;
}
It will work perfectly for any case. Let me know if you need any other help in this regard.
// a simpler thing that would get me what I need is:
How do I concatenate each the values of a variable1 with each values of variable2
$Var1 = 'my1, my2, my3'; // here I have dozens of entries, they are symbols
$Var2 = 'word1, word2, word3'; // here also dozens of entries, are words.
How do I have all the keys of a variable, placed together of the keys of another variable?
$Values_that_I_needed = 'my1word1, my1word2, my1word3, my2word1, my2word2, my2word3, my3word1, my3word2, my3word3';
How would I build this values this variable up with all those values without having to type everything!?
Imagine an example with 60 my1, my2 … and 130 word1, word2 …. it’s my case!
Put each of the 60my before each of the 130 words !!
// I need to concatenate / join / join each values / keys of a variable, with all the values/keys of another variable, to avoid making all these combinations by hand. and put in another variable.
The solution using explode and trim functions:
$Var1 = 'my1, my2, my3'; // here I have dozens of entries, they are symbols
$Var2 = 'word1, word2, word3';
$result = "";
$var2_list = explode(',', $Var2);
foreach (explode(',', $Var1) as $w1) {
foreach ($var2_list as $w2) {
$result .= trim($w1) . trim($w2). ', ';
}
}
$result = trim($result, ', ');
print_r($result);
The output:
my1word1, my1word2, my1word3, my2word1, my2word2, my2word3, my3word1, my3word2, my3word3
Below cod should work if var1 and var2 have the same length
<?php
$tab1=explode(',',$var1);
$tab2=explode(',',$var2);
$c=$count($tab1);
$output='';
for($i=0;$i<$c;$i++){
$output.=$tab1[$i].$tab2[$i].', ';
}
echo $output;
$Var1 = 'my1, my2, my3';
$Var2 = 'word1, word2, word3';
$Array1 = explode(", ",$Var1); // create array from $Var1
$Array2 = explode(", ",$Var2); // create array from $Var2
foreach($Array1 as $My){
foreach($Array2 as $Word){
$Result[] = $My.$Word; // Join Var1 & Var2
}
}
$Values_that_I_needed = implode(", ", $Result);
echo $Values_that_I_needed; // my1word1, my1word2, my1word3, my2word1, my2word2, my2word3, my3word1, my3word2, my3word3
Here is an example of what I am trying to accomplish:
$array['aaa']['bbb']['ccc'] = "value";
$subarray = "['bbb']['ccc']";
echo $array['aaa']$subarray; // these 2 echos should be the same
echo $array['aaa']['bbb']['ccc']; // these 2 echos should be the same
It should display the same as $array['aaa']['bbb']['ccc'] i.e., "value".
This doesnt work, of course. But is there some simple solution to this?
There could be some function and the $subarrayvalue may be used as a parametr and/or as an array itself like: $subarray = array('bbb','ccc'); I dont mind as long as it worsk.
You could try something like below.
$subarray = "['bbb']['ccc']";
$temp = parse_str("\$array['aaa']".$subarray);
echo $temp;
OR To ignore single quotes -
$subarray = "[\'bbb\'][\'ccc\']";
$temp = parse_str("\$array[\'aaa\']".$subarray);
echo $temp;
Also you may refer - http://php.net/manual/en/function.parse-str.php
Just try using array chunk function http://php.net/manual/en/function.array-chunk.php
here is what actually works!!
$array['aaa']['bbb']['ccc'] = "value";
$subarray = "['bbb']['ccc']";
$string = 'echo $array[\'aaa\']' . $subarray . ';';
eval($string);
If I want to add multiple values in array having same index in PHP, then can it be possible to create this type of an array? For e.g.,
fruits[a]="apple";
fruits[a]="banana";
fruits[a]="cherry";
fruits[b]="pineapple";
fruits[b]="grappes";
I want array to look like as below:-
fruits = {[a]=>"apple",[a]=>"banana",[a]=>"cherry",[b]=>"pineapple",[b]=>"grappes"};
You cannot define multiple value under same key or index.
In your case -
fruits[a]="apple";
fruits[a]="banana";
Here apple will be replaced by banana.
Instead, you may define array as -
fruits[a][] = "apple";
fruits[a][] = "banana";
Edit: i updated my answer with php code, but i don't code php usually, this might not be the most optimal solution, i tried this code in a php sandbox
$subarray1[0] = "apple";
$subarray1[1] = "banana";
$subarray1[2] = "cherry";
$subarray2[0] = "pineapple";
$subarray2[1] = "grappes";
$fruits[0] = $subarray1;
$fruits[1] = $subarray2;
foreach( $fruits as $key => $value ){
foreach( $value as $key2 => $value2 ){
echo $key2."\t=>\t".$value2."\n";
}
}
use implode and explode .
subarray1[0] = "apple"
subarray1[1] = "banana"
subarray1[2] = "cherry"
subarray2[0] = "pineapple"
subarray2[1] = "grappes"
It is store data with ,(comma)
$ar="";
for($i=0;$i<=count(subarray1);$i++)
{
$ar[]=subarray1[$i];
}
$rt=implode(',',$ar);
echo $rt;
It is Remove ,(comma) form array
$ex=explode(",",$ar);
print_r($ex);
I'm trying to pass an array of variable names to be assigned to the list() function, and I'm wondering if it's even possible. My intention is for list($variables) to parse $values.
$variables = array("$var1","$var2","$var3");
$values = array('Value1','Value2','Value3');
//Can I simply pass an array of variable names to be assigned here
list($values) = explode("&", $values);
To clarify, my intention is to have PHP execute this:
list($var1, $var2, $var3) = explode("&", $values);
You'd have to do a little trickery, but with array_combine and extract you could achieve the same effect:
$keys = array("var1","var2","var3");
$values = array('Value1','Value2','Value3');
extract(array_combine($keys, $values));
echo $var1; //"Value1"
<?php
$info = array('coffee', 'brown', 'caffeine');
// Listing all the variables
list($drink, $color, $power) = $info;
echo "$drink is $color and $power makes it special.\n";
// Listing some of them
list($drink, , $power) = $info;
echo "$drink has $power.\n";
// Or let's skip to only the third one
list( , , $power) = $info;
echo "I need $power!\n";
// list() doesn't work with strings
list($bar) = "abcde";
var_dump($bar); // NULL
?>
http://php.net/manual/en/function.list.php
list is used to assign a list of variables in one operation. This is the sytax:
$string = 'VarA, VarB, VarC';
list($varA, $varB, $varC) = explode(',', $string);
When u use variables you can need to keep the quotes away so the second is the right one.
$array = ($var1, $var2, $var3);
You dont need to use explode anymore cause you already have an array. explode creates an array. In your example it would be:
$array = array($var1, $var2, $var3);
list($varA, $varB, $varC) = $array;
Note that i changed the array syntax. You forgot the array keyword.
I understand you want to explode the response variable and assign each value to the corresponding variable.
You can achieve it this way instead of using list:
$varnames = array('var1','var2','var3');
$varvals = explode('&',$response);
foreach($varnames as $k => $v){
$$v = $varvals[$k];
}
This way $var1 will have the first value in response, $var2 the second, and so on.
You can't do that. Why you don't use the second your variant?