<?php 
$myArray['key']                = $value; 
$myArray[/* key start */'key'] = $value; 
$myArray[/* key start */'key'/* key end */] = $value; 
$myArray  [  'key'  ]            = $value; 
if ($array[($index + 1)] === true) { 
} else if ($array  [ ($index + 1) ] === null) { 
} 
$array = [ 
    'foo' => 'bar', 
    'bar' => 'foo', 
]; 
 
if ($foo) {} 
[$a, $b] = $c; 
 
echo foo()[ 1 ]; 
 
echo $this->addedCustomFunctions['nonce']; 
echo $this->deprecated_functions[ $function_name ]['version']; 
 
echo [ 1,2,3 ][0]; 
echo [ 1,2,3 ][ 0 ]; 
echo 'PHP'[ 0 ]; 
 
$array = []; 
$var = $var[$var[$var]]]; // Syntax error 
$var = $var[$var[$var]; // Syntax error 
 
$myArray[ /* key start */'key'] = $value; 
$myArray[ /* key start */'key'/* key end */ ] = $value; 
 
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