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  1. <?php
  2.  
  3. $aNumbers = [
  4. 	1 => 'one',
  5. 	2 => 'two',
  6. 	3 => 'three',
  7. ];
  8.  
  9. $oKey = new stdClass();
  10.  
  11. $bInArray = in_array($oKey, $aNumbers);
  12.  
  13. var_dump($bInArray);
  14.  
  15. $bInArray = in_array((string) $oKey, $aNumbers);
Runtime error #stdin #stdout #stderr 0.01s 20520KB
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stdin
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Standard input is empty
stdout
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bool(false)
stderr
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PHP Catchable fatal error:  Object of class stdClass could not be converted to string in /home/lyL0Ij/prog.php on line 15
https://ideone.com/72HLYB
Object of class stdClass could not be converted to string.
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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