1 2 3 4 5 6 7 | <?php $s='e3r4t5'; $s = preg_replace('/\D+/', '', $s); echo $s; ?> |
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upload with new input
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result: Success time: 0.01s memory: 20520 kB returned value: 0
<?php $s='e3-r4-t5'; $s = preg_replace('/[^\d-]+/', '', $s); echo $s; ?>345
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result: Success time: 0.01s memory: 20568 kB returned value: 0
<?php $s='e3-r4-t5'; $s = preg_replace("/^\-?\d+$/", '', $s); echo $s; ?>345
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result: Success time: 0.01s memory: 20520 kB returned value: 0
<?php $s='e3-r4-t5'; $s = preg_replace("/^\+?\d+$/", '', $s); echo $s; ?>345
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result: Success time: 0.01s memory: 20568 kB returned value: 0
<?php $s='e3-r4-t5'; $s = preg_replace("/^[0-9-]/", '', $s); echo $s; ?>345
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result: Success time: 0.01s memory: 20568 kB returned value: 0
<?php $s='e3-r4-t5'; $s = preg_replace("/^[0-9][-]/", '', $s); echo $s; ?>345
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result: Success time: 0.01s memory: 20520 kB returned value: 0
<?php $s='e3-r4-t5'; $s = preg_replace("/[^0-9]{-}/", '', $s); echo $s; ?>345
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result: Success time: 0s memory: 13112 kB returned value: 0
345


