3v4l.org

run code in 300+ PHP versions simultaneously
<?php $booklist = [ 'Peppa / Season 2 / 43 The Quarrel / Page 1', 'Nursery Rhymes / Wheels On The Bus / Page 1', 'Wonderskills / Starter Book 2 / Unit 1 At The Firehouse / Part 3 / Page 3', 'Oxford Phonics World / Level 2 Short Vowels / Unit 1 Short A / Page 7', 'Peppa / Season 2 / 43 The Quarrel / Page 1', 'Nursery Rhymes / Twinkle Twinkle / Page 1', 'Wonderskills / Starter Book 2 / Unit 1 At The Firehouse / Part 2 / Page 17', 'Oxford Phonics World / Level 1 The Alphabet / Unit 8 / Review W X Y Z / Page 2', 'Peppa / Season 2 / 42 Granny And Grandpas Attic / Page 1', 'Nursery Rhymes / The Phonics Song / Page 1', 'Wonderskills / Starter Book 2 / Unit 1 At The Firehouse / Part 2 / Page 4', 'Peter Pan / Level 1 / Page 1', 'Peppa / Season 2 / 42 Granny And Grandpas Attic / Page 1', 'Nursery Rhymes / The Phonics Song / Page 1', 'Donald Duck / Page 19', 'Donald Duck / Page 18', 'Oxford Phonics World / Level 1 The Alphabet / Unit 8 / Letter Z / Page 2', ]; $result = []; foreach ($booklist as $book) { $result[strtok($book, '/')] ??= $book; } var_export(array_values($result));
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
array ( 0 => 'Peppa / Season 2 / 43 The Quarrel / Page 1', 1 => 'Nursery Rhymes / Wheels On The Bus / Page 1', 2 => 'Wonderskills / Starter Book 2 / Unit 1 At The Firehouse / Part 3 / Page 3', 3 => 'Oxford Phonics World / Level 2 Short Vowels / Unit 1 Short A / Page 7', 4 => 'Peter Pan / Level 1 / Page 1', 5 => 'Donald Duck / Page 19', )
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
preferences:
97.13 ms | 407 KiB | 5 Q