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  1. <?php
  2. $arr= Array("123.4", "",  "123e4", "slovo");
  3. foreach ($arr as $k=>$a)
  4.     if (($a + 0) == $a) echo $a."\n";
Success #stdin #stdout 0.01s 20568KB
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123.4

123e4
slovo
https://ideone.com/EbnkPO
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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