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I have an array like this:
$Array = [
[1, 33, 55, 18],
[8, 9, 12, 67],
[3, 33, 76, 88],
];
And I want add ; to output like this:
1, 33, 55, 18;
8, 9, 12, 67;
3, 33, 76, 88
Anyone know how to do this?
Use array map to achieve this
$temp = array_map(function($item){
return implode(", ", $item);
}, $Array);
foreach($temp as $v){
// implode with ';' and \n for line break
// you can use "<br/>" if you are using web.
echo $v.";\n";
}
Demo.
One looper:
foreach($Array as $v){
echo implode(", ",$v).";\n";
}
Demo.
Output
1, 33, 55, 18;
8, 9, 12, 67;
3, 33, 76, 88;
I have 2 arrays:
$arr_1=array(200, 300, 200, 200);
$arr_2=array(
1 => array(70, 90, 70, 20),
2 => array(115, 150, 115, 35),
3 => array(205, 250, 195, 55),
4 => array(325, 420, 325, 95),
5 => array(545, 700, 545, 155)
);
Now I need some way to get array keys for arrays in $arr_1 where all their values are less than all values from $arr_2.
In the above example it must return key 1 AND key 2 from $arr_2 without using a foreach loop.
You can use array_filter to filter the elements (it preserves keys) and then pass the result to array_keys to receive an array of keys.
Also, your condition can be spelled this way: "return subarrays from $arr_2 where highest value is smaller than smallest value of $arr_1."
$arr_1=array(200, 300, 200, 200);
$arr_2=array(
1 => array(70, 90, 70, 20),
2 => array(115, 150, 115, 35),
3 => array(205, 250, 195, 55),
4 => array(325, 420, 325, 95),
5 => array(545, 700, 545, 155)
);
$filtered = array_filter($arr_2, function($value) use ($arr_1) {
return max($value) < min($arr_1);
});
$keys = array_keys($filtered);
var_dump($keys);
If you are only interested in comparing the subarrays against the lowest value in $arr_1, then best practices dictates that you declare that value before entering the array_filter(). This will spare the function having to call min() on each iteration. (Demo)
$arr_1=[200,300,200,200];
$arr_2=[
1=>[70,90,70,20],
2=>[115,150,115,35],
3=>[205,250,195,55],
4=>[325,420,325,95],
5=>[545,700,545,155]
];
$limit=min($arr_1); // cache this value, so that min() isn't called on each iteration in array_filter()
$qualifying_keys=array_keys(array_filter($arr_2,function($a)use($limit){return max($a)<$limit;}));
var_export($qualifying_keys);
/*
array(
0=>1,
1=>2,
)
*/
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How do you make a table like this with FPDF using PHP?
I can't seem to figure out how to do this with $this->Cell.
OK .. let's try. Just an example .. an idea. ok ?
$pdf->SetFillColor(255,0,0);
$pdf->SetTextColor(255);
$pdf->SetDrawColor(128,0,0);
$pdf->SetLineWidth(.3);
// Title row
$pdf->SetFont('', 'B');
$pdf->Cell(100, 8, "LEARNING POTENTIAL", 1, 0, 'L', true);
$pdf->SetFont('', '');
$pdf->Cell(20, 8, "Score", 1, 0, 'C', true);
$pdf->Cell(20, 8, "Results", 1, 0, 'C', true);
$pdf->>Ln();
// Data rows
// (loop) foreach($data as $row) {
$pdf->SetFont('', 'B');
$pdf->Cell(100, 8, "Reasoning", "LTR", 0, 'L');
$pdf->Cell(20, 8, "", "LTR");
$pdf->Cell(20, 8, "", "LTR");
$pdf->>Ln();
$pdf->SetFont('', 'B');
$pdf->Cell(100, 8, "The ability to interpret information and", "LR", 0, 'L');
$pdf->SetFont('', '');
$pdf->Cell(20, 8, "6", "LR");
$pdf->Cell(20, 8, "Effective", "LR");
$pdf->>Ln();
$pdf->SetFont('', 'B');
$pdf->Cell(100, 8, "drawing accurate conclusions", "LBR", 0, 'L');
$pdf->Cell(20, 8, "", "LBR");
$pdf->Cell(20, 8, "", "LBR");
$pdf->>Ln();
// (end loop)
I divided each data row in 3 rows.
I am passing an array from jQuery to php.
The array is generated from a table with this code:
var stitchChartArray = [];
var row = 0;
// turn stitch chart into array for php
$('#stitchChart').find('tr').each(function (index, obj) {
//first row is table head- "Block #"
if(index != 0){
stitchChartArray.push([]);
var TDs = $(this).children();
$.each(TDs, function (i, o) {
var cellData = [$(this).css('background-color'), $(this).find("img").attr('src')];
stitchChartArray[row].push(cellData);
});
row++;
}
});
In console it looks like this:
[[["rgb(75, 90, 60)", "symbols/177.png"], ["rgb(75, 75, 60)", "symbols/184.png"], ["rgb(75, 90, 60)", "symbols/177.png"], 7 more...], [["rgb(105, 105, 105)", "symbols/163.png"], ["rgb(75, 75, 60)", "symbols/184.png"], ["rgb(75, 90, 60)", "symbols/177.png"], 7 more...], [["rgb(105, 105, 105)", "symbols/163.png"], ["rgb(75, 90, 60)", "symbols/177.png"], ["rgb(75, 75, 60)", "symbols/184.png"], 7 more...], [["rgb(75, 90, 60)", "symbols/177.png"], ["rgb(75, 90, 60)", "symbols/177.png"], ["rgb(98, 119, 57)", "symbols/210.png"], 7 more...], [["rgb(105, 105, 105)", "symbols/163.png"], ["rgb(105, 105, 105)", "symbols/163.png"], ["rgb(150, 150, 195)", "symbols/72.png"], 7 more...], [["rgb(75, 165, 105)", "symbols/187.png"], ["rgb(134, 158, 134)", "symbols/64.png"], ["rgb(165, 180, 180)", "symbols/171.png"], 7 more...], [["rgb(60, 150, 75)", "symbols/189.png"], ["rgb(120, 120, 90)", "symbols/225.png"], ["rgb(143, 163, 89)", "symbols/209.png"], 7 more...]]
It represents each row of a table->each cell of row->[0]rgb value of bg of cell [1]icon in cell.
This jQuery code returns the correct element(and rgb value) from the array:
alert(stitchChartArray[1][1][0]); //row 1,cell 1, first value(rgb)
But when it gets sent to the php script with this:
$.post('makeChartPackage.php', {'stitchChart[]': stitchChartArray }, function(data){
alert(data);
});
The php throws an error:
Cannot use string offset as an array in /Users/tnt/Sites/cross_stitch/makeChartPackage.php on line 33
$stitchChart = $_POST['stitchChart'];
echo $stitchChart[1][1][0]; //line 33
I am assuming I am either constructing the array incorrectly or passing it to the php script incorrectly.
EDIT:
I did this to return the array to jQuery:
$stitchChart = $_POST['stitchChart'];
print_r($stitchChart);
And here was the result:
Array
(
[0] => rgb(75, 90, 60),symbols/177.png,rgb(75, 75, 60),symbols/184.png,rgb(75, 90, 60),symbols/177.png,rgb(98, 119, 57),symbols/210.png,rgb(180, 195, 105),symbols/388.png,rgb(165, 165, 120),symbols/235.png,rgb(75, 75, 60),symbols/184.png,rgb(90, 90, 45),symbols/195.png,rgb(120, 120, 75),symbols/156.png,rgb(105, 105, 105),symbols/163.png
[1] => rgb(105, 105, 105),symbols/163.png,rgb(75, 75, 60),symbols/184.png,rgb(75, 90, 60),symbols/177.png,rgb(75, 90, 60),symbols/177.png,rgb(165, 165, 120),symbols/235.png,rgb(120, 120, 75),symbols/156.png,rgb(75, 90, 60),symbols/177.png,rgb(75, 90, 60),symbols/177.png,rgb(105, 105, 105),symbols/163.png,rgb(120, 120, 90),symbols/225.png
[2] => rgb(105, 105, 105),symbols/163.png,rgb(75, 90, 60),symbols/177.png,rgb(75, 75, 60),symbols/184.png,rgb(75, 90, 60),symbols/177.png,rgb(98, 119, 57),symbols/210.png,rgb(75, 90, 60),symbols/177.png,rgb(75, 75, 60),symbols/184.png,rgb(105, 105, 105),symbols/163.png,rgb(120, 120, 90),symbols/225.png,rgb(105, 105, 105),symbols/163.png
It appears the array is not multidimensional?
$_POST['stitchChart'] in the context you have addressed it there is (effectively) a JSON representation of a multidimensional array, stored as a string. When you treat a string as a multidimensional indexed array in PHP, you will get that error. The first [x] is treated as a "string offset" - i.e. the character at position x - but the next and any subsequent [x] addresses can only be treated as arrays (you cannot get a substring of a single character) and will emit the error you have received.
To access your data as an array in PHP, you need to use json_decode():
$stitchChart = json_decode($_POST['stitchChart'],TRUE);
echo $stitchChart[1][1][0];
EDIT
Because the jQuery data argument seemingly can't deal with multidimensional arrays, you should use Douglas Crockford's JSON-js library and pass the result into data as a string. NB: use json2.js.
Here is how you could do this:
stitchChartArray = JSON.stringify(stitchChartArray);
$.post('makeChartPackage.php', {'stitchChart': stitchChartArray }, function(data){
alert(data);
});
If you use this code, my original PHP suggestion should work as expected.
Currently I am storing adjacencies in a php file in an array. Here's a sample of it:
$my_neighbor_lists = array(
1=> array(3351=> array (2, 3, 5 , 6, 10)),
2=> array(3264=> array (322, 12, 54 , 6, 10), 3471=>array (122, 233, 35 , 476, 210)),
3=> array(3309=> array (52, 32, 54 , 36, 210), 3469=>array (152, 32, 15 , 836, 10)),
etc
I would like to basically migrate this into a db. Any suggestions on how many table I should have? I am looking at three tables here.
two tables:
1. vertices (id)
2. edgecost (idfrom, idto, time, cost)