All Questions
527
questions
0
votes
1
answer
19
views
Why does the PHP spread operator in an Elasticsearch query return different results than hardcoding parts of the query?
I've got a problem that I'm not entirely sure I understand. I've got the following Elasticsearch query, written in PHP, with fuzziness matching hardcoded; this results in about an expected 1,500 ...
2
votes
1
answer
64
views
Why does calling a static method with only one colon not cause a parse error? [duplicate]
When calling the following code, I was surprised that a parse error was not thrown or other error given as this code does not look right.
The colon in PHP has several uses, however, I've gone off the ...
- 17.7k
-1
votes
1
answer
82
views
PHP - Why does division operation causes loop to skip rows of data
Completely stumped by this one. I have some code that pulls rows from a database and attempts to process them as part of a PHP while() loop. Here's the basic code:
$i = 1;
while (list($thisScoreID, $...
0
votes
1
answer
146
views
Hide Shipping Method conditionally based on Shipping Class, Cart Quantity and Cart Total in WooCommerce [duplicate]
I am encountering some issues with my condition to check for cart total, amongst cart quantity and shipping classes.
What I am trying to achieve
I am trying to hide a specific shipping method ...
- 347
0
votes
1
answer
101
views
Writing an matrix alogrithm with multiple rules in PHP
I'm trying to write an alogrithm in PHP for this matrix:
'risk profile' is from 1 to 5.
'compliance score' is from 0 to 5.
The scores are then plotted in the matrix and given a frequency result
(in ...
- 588
1
vote
0
answers
39
views
Why does the decrementing operator in PHP work in this way? [duplicate]
The following code:
$arr = array(1, 2, 3, 4, 5);
$i = 5;
while($i >= 1){
var_dump($i);
var_dump($arr[--$i]);
}
has the following output:
int(5)
int(5)
int(4)
int(4)
int(3)
int(3)
int(2)
...
- 3,993
-1
votes
1
answer
102
views
Is !empty($a) ? $a : $b the same as $a ?: $b in PHP
I'm working on a new project and I've come upon the question if the ternary short hand operator the same as using the traditional ternary in combination with the empty() function?
For clarity purposes ...
3
votes
1
answer
176
views
Pass by reference when using splat operator (...)
I have two functions. One of them receive and modify some values in an array that is passed by reference.
function dostuff ($param1, $param2, &$arr) {
//...
//add new elements to $arr
}
...
- 3,549
0
votes
0
answers
20
views
PHP output newline in a single character using bitwise NOT operator
I have found in different web sites (for example here) this statement:
This PHP code prints a newline using 10 bytes:
echo "\n";
This PHP code prints a newline using 9 bytes:
echo "
&...
- 420
0
votes
2
answers
558
views
PHP How to take first 2 bits from byte and make new byte
Operations on bits.
How to take 2 bits from byte like this:
take first 2 from 12345678 = 12;
Make new byte = 00000012
For example as asked in discussion by jspit :
$char = 'z'; //is 122, 0111 1010
$b =...
0
votes
1
answer
46
views
PHP bug or just a logical flaw
I need to know why, the real logical reason, that the following comparison is executing the "echo" line! It seems to be some kind of sorcery. If you take out the "+" sign, it won't ...
1
vote
0
answers
37
views
float casting *= equations in php
Currently using PHP 8.1, I hit fatal errors whenever I do a formulae such as String * Float. Ok, so I just fix it by float casting it, and it's solved.
But I noticed another issue, is that float ...
- 112
0
votes
1
answer
118
views
Bitwise OR operator in PHP, Bug or Feature?
echo 'https://www.tehplayground.com/' | '/';
Results in 'ottps://www.tehplayground.com/'
Why?
-1
votes
1
answer
20
views
How to add a 3rd Option
I have this code snippet
if (!empty($_POST['dropdownOption'])) { $orderBy = ($_POST['orderValue'] == "date") ? "date" : "price"; $orderType = (!empty($_POST['...
0
votes
0
answers
35
views
variable operator to add or subrtact another variable
Im making a php math game where you have equations you need to solve in order to earn score. but heres the problem. i have 4 variables, $x, $y, $op, $b. $x is the first random number, $y is the second ...
- 1