PHP Remove Everything but Letters and Numbers

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MrPhear 1 years, 6 months ago

There'are two ways to strip everything but letters and numbers from a string.

1. with preg_replace(); function

preg_replace('#\W#', '' $string);

Eg:

$string = "php__ n?othing b ut le;tte,rs and n!um.bers";
$stripped_string = preg_replace('#\W#', '' $string);
echo $stripped_string;

should output;

phpnothingbutlettersandnumbers

2. with ereg_replace(); function

ereg_replace("[^A-Za-z0-9]", "", $string );

Eg:

$string = "php__ n?othing b ut le;tte,rs and n!um.bers";
$stripped_string = ereg_replace("[^A-Za-z0-9]", "", $string );
echo $stripped_string;

should output;

phpnothingbutlettersandnumbers

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