<?php
$users = [
['first_name' => 'Bob', 'last_name' => 'Smith'],
['first_name' => 'Steve', 'last_name' => 'Little'],
['first_name' => 'Eric', 'last_name' => 'Fielder'],
['first_name' => 'Steve', 'last_name' => 'Richardson'],
['first_name' => 'Bob', 'last_name' => 'Sanders'],
['first_name' => 'Bob', 'last_name' => 'Sanders'],
['first_name' => 'Bob', 'last_name' => 'Smith'],
];
foreach ($users as $row) {
$grouped[$row['first_name']][$row['last_name'][0] ?? ''][$row['last_name']][] = $row;
}
$result = [];
foreach ($grouped as $firstName => $leadingLetterGroup) {
$leadingLetterCount = count($leadingLetterGroup);
foreach ($leadingLetterGroup as $leadingLetter => $lastNameGroup) {
$lastNameCount = count($lastNameGroup);
foreach ($lastNameGroup as $lastName => $rows) {
if (count($rows) === 1) {
if ($leadingLetterCount === 1) {
$username = $firstName;
} elseif ($lastNameCount === 1) {
$username = "$firstName $leadingLetter.";
} else {
$username = "$firstName $lastName";
}
$result[] = $rows[0] + ['username' => $username];
} else {
foreach ($rows as $i => $row) {
$username = sprintf("%s %s (%d)", $firstName, $lastName, $i + 1);
$result[] = $row + ['username' => $username];
}
}
}
}
}
var_export($result);
- Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
- array (
0 =>
array (
'first_name' => 'Bob',
'last_name' => 'Smith',
'username' => 'Bob Smith (1)',
),
1 =>
array (
'first_name' => 'Bob',
'last_name' => 'Smith',
'username' => 'Bob Smith (2)',
),
2 =>
array (
'first_name' => 'Bob',
'last_name' => 'Sanders',
'username' => 'Bob Sanders (1)',
),
3 =>
array (
'first_name' => 'Bob',
'last_name' => 'Sanders',
'username' => 'Bob Sanders (2)',
),
4 =>
array (
'first_name' => 'Steve',
'last_name' => 'Little',
'username' => 'Steve L.',
),
5 =>
array (
'first_name' => 'Steve',
'last_name' => 'Richardson',
'username' => 'Steve R.',
),
6 =>
array (
'first_name' => 'Eric',
'last_name' => 'Fielder',
'username' => 'Eric',
),
)
- Output for 8.3.5
- Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
array (
0 =>
array (
'first_name' => 'Bob',
'last_name' => 'Smith',
'username' => 'Bob Smith (1)',
),
1 =>
array (
'first_name' => 'Bob',
'last_name' => 'Smith',
'username' => 'Bob Smith (2)',
),
2 =>
array (
'first_name' => 'Bob',
'last_name' => 'Sanders',
'username' => 'Bob Sanders (1)',
),
3 =>
array (
'first_name' => 'Bob',
'last_name' => 'Sanders',
'username' => 'Bob Sanders (2)',
),
4 =>
array (
'first_name' => 'Steve',
'last_name' => 'Little',
'username' => 'Steve L.',
),
5 =>
array (
'first_name' => 'Steve',
'last_name' => 'Richardson',
'username' => 'Steve R.',
),
6 =>
array (
'first_name' => 'Eric',
'last_name' => 'Fielder',
'username' => 'Eric',
),
)
preferences:
164.37 ms | 404 KiB | 155 Q