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  1. <?php
  2.  
  3. $vals = [
  4. 	1,
  5. 	'1',
  6. 	'a',
  7. 	null,
  8. 	false,
  9. 	true,
  10. 	0x1A,
  11. 	0b11111111,
  12. ];
  13.  
  14. foreach ($vals as $val) {
  15. 	echo $val . PHP_EOL;
  16. 	var_dump(is_numeric($val));
  17. 	var_dump(filter_var($val, FILTER_VALIDATE_INT));
  18. 	echo PHP_EOL;
  19. }
Success #stdin #stdout 0.01s 82880KB
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stdin
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Standard input is empty
stdout
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1
bool(true)
int(1)

1
bool(true)
int(1)

a
bool(false)
bool(false)


bool(false)
bool(false)


bool(false)
bool(false)

1
bool(false)
int(1)

26
bool(true)
int(26)

255
bool(true)
int(255)
https://ideone.com/wvsxRW
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
public

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