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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?php
$x1 = 1;
$x = [];
$y = [];
$goal = [];
array_push($x, $x1, $x1);
array_push($y, $x1, $x1);
array_push($goal, $x, $y);
print_r($goal);