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  1. <?php
  2. $a = "foo";
  3. $m[$a] = "val";
  4. $a[0] = "b"; // портим строку (а заодно и ключ в хеше)
  5. echo "foo ".$m["foo"]; // нету
  6. echo "boo ".$m["boo"]; // внезапно есть
  7. ?>
Success #stdin #stdout #stderr 0.01s 20520KB
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stdin
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Standard input is empty
stdout
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foo valboo
stderr
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PHP Notice:  Undefined index: boo in /home/DEtIaJ/prog.php on line 6
https://ideone.com/lNtdHl
language:
PHP (php 7.3.5)
created:
13 years ago
visibility:
public

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