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  1. <?php
  2. $valor = "   ";
  3. $valor = trim($valor);
  4. if(empty($valor)) {
  5.     echo "Sim, está vazio";
  6. }
Success #stdin #stdout 0.01s 20520KB
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stdin
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Standard input is empty
stdout
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Sim, está vazio
https://ideone.com/Afl1nm
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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