3v4l.org

run code in 300+ PHP versions simultaneously
<?php $products = [1, 2, 3, 4, 5]; $vendors = ["Amazon", "Newegg", "##php"]; foreach ($products as $productID) { foreach ($vendors as $vendor) { printf("Combination: %s at %s\n", $productID, $vendor); } }
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.25, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 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 - 8.2.18, 8.3.0 - 8.3.6
Combination: 1 at Amazon Combination: 1 at Newegg Combination: 1 at ##php Combination: 2 at Amazon Combination: 2 at Newegg Combination: 2 at ##php Combination: 3 at Amazon Combination: 3 at Newegg Combination: 3 at ##php Combination: 4 at Amazon Combination: 4 at Newegg Combination: 4 at ##php Combination: 5 at Amazon Combination: 5 at Newegg Combination: 5 at ##php
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/bWfQm on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/bWfQm on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/bWfQm on line 3
Process exited with code 255.
preferences:
235.31 ms | 401 KiB | 370 Q