I have some code that I wrote and it works really well. Except I am not sure whether what i have written is linear or bineary searching?! I get really confused about the differences. Could someone please clarify the differences and what my code is so I can explain it to someone?
-The code below searches a value inputted by the user. And goes through a csv file of data. I then saves all values into a new array which has the results. Hopefully that makes sense.
I just want to know whether my code is linear or binary? I get so confused about them *
$SearchThis = isset($_POST['Search']) ? $_POST['Search'] : '';
//empty()
$SearchThis = !empty($_POST['Search']) ? $_POST['Search'] : '';
// Grabs the csv file (and its existing data) and makes it into an array
$csv = array();
$lines = file('data/StaffData.csv', FILE_IGNORE_NEW_LINES);
foreach ($lines as $key => $value)
{
$csv[$key] = str_getcsv($value);
}
//A new array which will display the search results
$new_csv = array();
//This displays which rows have matched the search (it is put in an array)
//Looks through full names
$keys = array_keys(array_column($csv, 0), $SearchThis); // original code
foreach($keys as $index) { // Iterate over the keys
$new_csv[] = $csv[$index]; // Copy the matching rows to our new array
}
//Looks through phone numbers
$keys = array_keys(array_column($csv, 1), $SearchThis); // original code
foreach($keys as $index) { // Iterate over the keys
$new_csv[] = $csv[$index]; // Copy the matching rows to our new array
}
//Looks through gender
$keys = array_keys(array_column($csv, 2), $SearchThis); // original code
foreach($keys as $index) { // Iterate over the keys
$new_csv[] = $csv[$index]; // Copy the matching rows to our new array
}
//Looks through Birthday
$keys = array_keys(array_column($csv, 3), $SearchThis); // original code
foreach($keys as $index) { // Iterate over the keys
$new_csv[] = $csv[$index]; // Copy the matching rows to our new array
}
//Looks through Type of work
$keys = array_keys(array_column($csv, 4), $SearchThis); // original code
foreach($keys as $index) { // Iterate over the keys
$new_csv[] = $csv[$index]; // Copy the matching rows to our new array
}