Let's say I have a javascript array with a bunch of elements (anywhere from 50-200).
I want to send that to PHP (prepared statement) using ajax. Currently, I .load a php file many times inside of a loop, but I want to convert that into an array and send the array once, loading the PHP file once instead of 50-200 times.
array[i] = variable;
$.ajax({
type: "POST",
url: "parse_array.php",
data:{ array : JSON.stringify(array) },
dataType: "json",
success: function(data) {
alert(data.reply);
}
});
You php file looks like this:
<?php
$array = json_decode($_POST['array']);
print_r($array); //for debugging purposes only
$response = array();
if(isset($array[$blah]))
$response['reply']="Success";
else
$response['reply']="Failure";
echo json_encode($response);
The success function
success: function(data) {
console.log(data.reply);
alert(data.reply);
}
Try below code
<?php
$var=5;
$myArray = array();
while($var<10){
$myArray[]=$var;
$var++;
}
$dataarray=array("myarray"=>$myArray);
echo json_encode($dataarray);
?>
Jquery
jQuery(document).ready(function(){
jQuery("#previous").click(function(){
var res = new Array();
jQuery.getJSON("phparray.php", function(data) {
var i= 0;
while(i<data.myarray.length){
res[i]=data.myarray[i];
i++;
}
jQuery("#result").html(res[0]);
});
});
});
To send an array of params via URL from Javascript to PHP/Codeigniter, you need to follow 2 steps:
Convert your params array to JSON String and send that as a single query param.
para = JSON.stringify(para);
window.open('somePDFView?params='+para,'_blank');
Decode the query string param (i.e JSON string) at your controller
$params = json_decode($_GET['params']);
Now you can use all the params at your controller by accessing through $params.
Your code block becomes:
function viewReport(mode,someid){
if(mode==0){
var para= new Array();
para['para1'] = 'para1'||0;
para['para2']= 'para2' || 0;
console.log(para);
para = JSON.stringify(para);
window.open('somePDFView?params='+para,'_blank');
}else{
var para=[];
var paraelements={
para1:'anotherpara1'||0,
para2:'anotherpara2'||0
};
para[0]=paraelements;
para = JSON.stringify(para);
window.open('somePDFView?params='+para,'_blank');
}
}
Try this out and let me know if you still faces this issue.
If you want to pass a JavaScript object/hash (ie. an associative array in PHP) then you would do:
$.post('/url/to/page', {'key1': 'value', 'key2': 'value'});
If you wanna pass an actual array (ie. an indexed array in PHP) then you can do:
$.post('/url/to/page', {'someKeyName': ['value','value']});
If you want to pass a JavaScript array then you can do:
$.post('/url/to/page', {'someKeyName': variableName});
You could use
JSON.stringify(array)to encode your array in JavaScript, and then use$array=json_decode($_POST['jsondata']);in your PHP script to retrieve it.