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Question

You are using PHP7.

Firstly, note that $nodes in the statement $result = $node->$nodes[$i] = $value is a variable variable. The problematic part of the statement is $node->$nodes[$i] itself.

As specified in the PHP7 documention for Backward Incompatible Changes, a number of changes have been made to variable handling, including Changes to the handling of indirect variables, properties, and methods.

This states that:

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Reading list

PHP

Symfony2

• 24 Days of Blackfire

JS

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<?php

$names = ['Fred', 'Wilma', 'Pebbles', 'Barney', 'Betty', 'Bamm-Bamm'];
$count = count($names);

$count % 2 === 0 || exit('Error! You need an even number of names.');

shuffle($names);

$a = array_slice($names, 0, $count / 2);

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#!/bin/bash

VLC=/Applications/VLC.app/Contents/MacOS/VLC
IN=qtcapture://
OUT=dump.avi

$VLC -vvv $IN --sout $OUT

echo $?

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<?php

/**
 * A class that implements an interface cannot 
 * override a constant defined in the interface. 
 * But any child class that extends from the 
 * implementing class... can? 
 * 
 * o_O
 */

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package main

import (
  "bufio"
	"fmt"
	"log"
	"net"
	"strings"
)

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<?php 

interface TurnstileInterface
{
    public function insertCoin();
    public function pass();
}

class Turnstile implements TurnstileInterface
{

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find src/ -type f -name "*\.php" -exec php -l {} \; | grep -v 'No syntax errors'

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<?php

// omitted namespace declaration and imports for brevity

class HomeController extends Controller
{
    /**
     * Home page
     *
     * @Route("/", name="home_index")

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export PS1="[\e[0;36m\u@osx\e[m:\e[0;33m\w\e[m]\$ "