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$str = '::f:o:';
$str = ltrim($str, ':');
var_dump($str); //=> 'f:o:'
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$str = "The quick brown fox jumps over the lazy dog."
$str2 = substr($str, 4); // "quick brown fox jumps over the lazy dog."
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$str = "The quick brown fox jumps over the lazy dog."
$str2 = substr($str, 4); // "quick brown fox jumps over the lazy dog."
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$string = "example";
$removedFirstChar = substr($string, 1);
echo $removedFirstChar;