i have some data in my notepad and i want to find out maximum values to minimum values with php My data Looks like This
a:849444988- b:10.0
a:748449844- b:15.0
a:940849847- b:20.0
a:474844994- b:55.0
and so on..
now how to arrange it with higher to lower
i want output that show uid 474844994 have 55 bal
First declare your file data as an array of lines using file().
Then perform a custom sort which leverages natural sorting on the numeric substring that trails b:.
From here, you can continue processing the data as an array, or implode it back into its original string form ...whatever your task requires.
Code: (Demo)
//$lines=file('your.txt');
$lines=[
'a:849444988- b:10.0',
'a:748449844- b:15.0',
'a:123456789- b:120.0',
'a:940849847- b:20.0',
'a:474844994- b:55.0'
];
usort($lines,function($a,$b){
return strnatcmp( substr($b,strpos($b,'b:')+2) , substr($a,strpos($a,'b:')+2) );
// $b is listed before $a in strnatcmp() to achieve DESC order
});
echo implode("\n",$lines);
Output:
a:123456789- b:120.0
a:474844994- b:55.0
a:940849847- b:20.0
a:748449844- b:15.0
a:849444988- b:10.0
First, you read your file into an array using file() this will create one array element per line. Then use arsort() to sort from high to low.
$arr = arsort(file('filepath.txt'));
print_r($arr);//output array
Related
I have the following JSON:
[
{
"0":"2019-08-31",
"1":"Bank Exp.",
"2":"AED",
"3":"30",
"4":"",
"5":"BANK FEE 10"
},
{
"0":"2019-08-31",
"1":"Inventory",
"2":"AED",
"3":"122",
"4":"",
"5":"DEPOSIT 10000"
},
{
"0":"2019-08-31",
"1":"Petty Cash",
"2":"AED",
"3":"4999",
"4":"",
"5":"DEPOSIT 10000"
}
]
I am trying to Count the number of elements or columns in the Json. The result should be 6.
I have tried with echo count($data_array); (or sizeof) result is 3 (number of rows). How can I count the "columns" in this Json, taking into account that I must set as number of column the Max number of column a specific row has?
Do I have to use a loop to count or can I do it with a single instruction?
Assuming that some var $json contains the JSON code you have above, you should be aware that the following code will result in an array of objects of type stdClass:
$data_array = json_decode($json);
So $data_array is in fact an array, but it contains objects. As you pointed out, this will return the number of rows in your JSON:
echo sizeof($data_array);
Clearly, the number of columns is not the number of rows. If you want to know the number of columns then you'll need to check one or more rows/objects/elements of your $data_array var. It's expedient to just look at the first element:
$col_count = sizeof($data_array[0]);
HOWEVER, this is going to cause an E_WARNING if $data_array's elements are objects of type stdClass:
PHP Warning: sizeof(): Parameter must be an array or an object that implements Countable in /tmp/foo.php on line 33
You could optionally use the second parameter of the json_decode function which will force PHP to decode every curly bracketed object in your JSON code as an associative array instead of stdClass objects:
$data_array = json_decode($json, TRUE);
$col_count = sizeof($data_array[0]);
This yields a $col_count value of6 which is the correct for the first object in your array. You should consider that later elements in $data_array may have either more or fewer columns, depending on the structure of your data. If you are sure that all elements will have the same number of columns, this is adequate, but if you have messy data, you may need to check every element of your data array to see what the true number of columns is:
$data_array = json_decode($json, TRUE);
$col_count = 0;
foreach($data_array as $row) {
$col_count = max($col_count, sizeof($row));
}
var_dump($col_count);
This will yield a $col_count value which reflects the maximum number of columns encountered in any element of your JSON. Clearly, there may be performance considerations if your JSON contains a large number of elements. It all depends on your JSON data and the nature of your application.
EDIT:
Instead of an explicit foreach loop, I think you can get away with this, but it will still require PHP to loop through your data structure. That said, it'll probably be faster:
$max_col_count = max(array_map("count", $data_array));
count($data_array) counts the number of elements in an array. In your case, is 3. But your array is multidimensional (matrix). So you need to count on some index to get the number of columns on that position:
<?php
echo count($data_array[0]);
I have a script that loops through and retrieves some specified values and adds them to a php array. I then have it return the value to this script:
//Returns the php array to loop through
$test_list= $db->DatabaseRequest($testing);
//Loops through the $test_list array and retrieves a row for each value
foreach ($test_list as $id => $test) {
$getList = $db->getTest($test['id']);
$id_export[] = $getList ;
}
print(json_encode($id_export));
This returns a JSON value of:
[[{"id":1,"amount":2,"type":"0"}], [{"id":2,"amount":25,"type":"0"}]]
This is causing problems when I try to parse the data onto my android App. The result needs to be something like this:
[{"id":1,"amount":2,"type":"0"}, {"id":2,"amount":25,"type":"0"}]
I realize that the loop is adding the array into another array. My question is how can I loop through a php array and put or keep all of those values into an array and output them in the JSON format above?
of course I think $getList contains an array you database's columns,
use
$id_export[] = $getList[0]
Maybe can do some checks to verify if your $getList array is effectively 1 size
$db->getTest() seems to be returning an array of a single object, maybe more, which you are then adding to a new array. Try one of the following:
If there will only ever be one row, just get the 0 index (the simplest):
$id_export[] = $db->getTest($test['id'])[0];
Or get the current array item:
$getList = $db->getTest($test['id']);
$id_export[] = current($getList); //optionally reset()
If there may be more than one row, merge them (probably a better and safer idea regardless):
$getList = $db->getTest($test['id']);
$id_export = array_merge((array)$id_export, $getList);
I want to make array like this for the Answer field:
$my_array = array("Melon-Daiquiri.jpg1_2.jpg","banner1.png","images.jpg");
After that I want to use Shuffle function to show this record randomly.
Here is my var_dump($array) Output. (coming from database)
Simply use array_map like as its an array of objects you can simply achieve it like as
$result = array_map(function($v) {
return $v->Answer;
},$your_array);
If your are getting your data from database you can use RAND() mysql method to shuffle your data. example
SELECT * FROM users ORDER BY rand() LIMIT 20
$myArray = array();
for($i=0;i<2;$i++){
..
.. //get the content logic here
assign it to array
$myArray["item"]["content"] = $item_content;
}
echo json_encode($myArray);
The above code produced this result:
Which has an error because I didn't merge them.
I tried to merge like this:
$finalJson = array_merge($finalJson, $myArray);
but the output of echo $finalJson is one object instead of 3.
Update:
Your real problem is down to your use of array_merge on an associative array. The behaviour of array_merge is to reassign duplicate keys if they are associative (cf the docs):
If the input arrays have the same string keys, then the later value for that key will overwrite the previous one. If, however, the arrays contain numeric keys, the later value will not overwrite the original value, but will be appended.
And because $myArray is clearly using strings as keys, the values in $finalJson are being reassigned. What you need to do is either create unique keys on each iteration, or simply push the values of $myArray onto a numerically indexed $finalJson array (like I showed in my original answer below)
The problem is simply this:
$myArray["item"]["content"] = $item_content;
it's inside the loop, each time reassigning the value of $myArray["item"]["content"], and not adding it to the array. I suspect that what you wanted to do is add this at the bottom of your loop (for each new value of $myArray):
$finalJson[] = $myArray;
Then, on the next iteration, $myArray will be reassigned, and its new value will be appended to the $finalJson variable.
i have a tricky problem.
What i do.
I generate from the System Tables of Databases (DEV ,Test Prod setup) information for Tables, Vies trigger … with PHP and compare the results ti see teh differences with JavaScript.
Also I have a Documentation DB for additional business information which was installed only once on TEST DB.
Therfore I need to connect all four environments to get the data.
I use
if ($flag === 'i')
for information DB and
elseif ($flag === 's')
for system db‘s.
Result is $row_array and $info_array which must be combined and sendet back to Javascript.
$json_response = array_merge($rinfo, $rsql );
echo json_encode($json_response, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_NUMERIC_CHECK);
I try this merge in a different positions in the program.
First time in
elseif ($flag === 'i') {
result json:
[
{
"0": "ACT",……….
} ][ ]
second time after } //ifelse return also 2 arrays
[{"0":"ACT","1":"Tabelle Akten","2":"hh","3":null,"4":null,"5":"UCC","6":"Y","7":"Reload Data in Test","8":"y","9":"delete all older tha","10":"n","11":" ","12":"y","13":" ","14":"o","15":"y","16":"o","17":"y","18":"y","19":"Diese tabelle speichert die Acten Verweise","20":"Gert Dorn","21":1570254359,"TDESCRIPTION":"n","TTYPE":" ","TREC_ESTIM":"y","TREC_GROWTH":" ","TDOMAIN":"o","TREL_TYPE":"y","TREL_RULES":"o","THOUSEKEEPING":"y","THOUSE_RULES":"y","TCID":"Diese tabelle speichert die Acten Verweise","TCID_RULES":"Gert Dorn","TUSE_UCC":1570254359,"TUSE_DWH":"","TUSE_ODS":"","TUSE_CWF":"","TUSE_IWF":"","TUSE_OWF":"","TUSE_DEP_MANAGER":"","TENTITY_DESCRIPTION":"","TOWNER":""
,"TTIMESTAMP":""**}][{**"0":"ACT","1":"DB2INST1"
,"2":"USERSPACE1","3":null,"4":"2018-11-21 16:43:20.066567","5":"2018-12-07 10:12:10.255759","6":null,"7":"2020-03-26","8":"2018-11-21 16:43:20.343258","9":3,"NAME":"ACT","CREATOR":"DB2INST1","TBSPACE":"USERSPACE1","REMARKS":"","CTIME":"2018-11-21 16:43:20.066567","STATS_TIME":"2018-12-07 10:12:10.255759","STATISTICS_PROFILE":"","LASTUSED":"2020-03-26","ALTER_TIME":"2018-11-21 16:43:20.343258","COLCOUNT":3}]
The program code and result you can download at
http://dmdg.io/dmdg.zip
Hope you can help Kind regards gert
Did you consider using array_push?
array_push is always preferred than myArray[] = $value
I want to do something like bellow using php:
$turl=array(trim($params->get('c2')));
$tname=array(trim($params->get('cn2')));
and want to display each $turl with each $tname.
I tried like this:
$result=array_combine($turl,$tname);
print_r($result);
but given result as:
Array ( [http://184.107.144.218:8282/,http://184.107.144.218:8082/] => ABC Radio,AHH Radio )
But I want like this:
Array ( [http://184.107.144.218:8282/=> ABC Radio,
http://184.107.144.218:8082/=> AHH Radio )
Thanks in advance
maybe you want to use a code similar to this:
$turl = explode(',',trim($params->get('c2')));
$tname = explode(',',trim($params->get('cn2')));
$result=array_combine($turl,$tname);
print_r($result);
The error seems to be into the $turl and $tname arrays creation as array combine should work as intended
Obviously I would add several checks, as, for example, Have the two arrays the same size?
Addendum
In your comment you give me a specimen of what $params->get returns if called with parameters 'c2' and 'cn2'.
$params->get('c2')="hoicoimasti.com,google.com"
$params->get('cn2')="hoicoi,google".
The example code I gave you do what required, or at leas what I was thinking you are trying to obtain. A different code with a different result is:
$turl = explode(',',trim($params->get('c2')));
$tname = explode(',',trim($params->get('cn2')));
$result=array_map(function($x,$y){return $x.','.$y;},$turl,$tname);
print_r($result);
or, if you want to obtains a single string:
$result=join(',',array_map(function($x,$y){return $x.'=>'.$y;},$turl,$tname));
print_r($result);
You can obtain any desired result modifying one of the previous example.
To encase the results in an option you need a slight variation of the array_map user function:
$result=join("\n",array_map(
function($x,$y){
return "<option>$x=>$y</option>";
},
$turl,
$tname
));
print_r($result);
PHP < 5.3 version
Put this function declaration somewhere in the global scope
function formatOption($x,$y){
return "<option>$x=>$y</option>";
};
and then your code will become:
$result=join("\n",array_map( 'formatOption', $turl, $tname));
print_r($result);
If possible I won't clutter the global namespace with function like formatOption,
but when anonymous function are not available
Reference:
array_map
join