Delete First 3 Characters and Last 3 Characters from String PHP

Delete first 3 characters and last 3 characters from String PHP

Pass a negative value as the length argument (the 3rd argument) to substr(), like:

$result = substr($string, 3, -3);

So this:

<?php
$string = "Sean Bright";
$string = substr($string, 3, -3);
echo $string;
?>

Outputs:

n Bri

How can I remove three characters at the end of a string in PHP?

Just do:

echo substr($string, 0, -3);

You don't need to use a strlen call, since, as noted in the substr documentation:

If length is given and is negative, then that many characters will be omitted from the end of string

Remove first 4 characters of a string with PHP

You could use the substr function to return a substring starting from the 5th character:

$str = "The quick brown fox jumps over the lazy dog."
$str2 = substr($str, 4); // "quick brown fox jumps over the lazy dog."

Remove trailing delimiting character from a delimited string

Contrary to the question asked, rtrim() will remove any number of characters, listed in the second argument, from the end of the string. In case you expect just a single comma, the following code would do:

$newarraynama = rtrim($arraynama, ",");

But in my case I had 2 characters, a comma and a space, so I had to change to

$newarraynama = rtrim($arraynama, " ,");

and now it would remove all commas and spaces from the end of the string, returning a, b, c, d, e either from a, b, c, d, e,, a, b, c, d, e,,,, a, b, c, d, e, or a, b, c, d, e , ,, , ,

But in case there could be multiple commas but you need to remove only the last one, then rtrim() shouldn't be used at all - see other answers for the solution that directly answers the question.

However, rtrim() could be a good choice if you don't know whether the extra character could be present or not. Unlike substr-based solutions it will return a, b, c, d, e from a, b, c, d, e

Remove first and last char from string

Using trim:

trim($dataList, '*');

This will remove all * characters (even if there are more than one!) from the end and the beginning of the string.

Remove a string from the beginning of a string

Plain form, without regex:

$prefix = 'bla_';
$str = 'bla_string_bla_bla_bla';

if (substr($str, 0, strlen($prefix)) == $prefix) {
    $str = substr($str, strlen($prefix));
} 

Takes: 0.0369 ms (0.000,036,954 seconds)

And with:

$prefix = 'bla_';
$str = 'bla_string_bla_bla_bla';
$str = preg_replace('/^' . preg_quote($prefix, '/') . '/', '', $str);

Takes: 0.1749 ms (0.000,174,999 seconds) the 1st run (compiling), and 0.0510 ms (0.000,051,021 seconds) after.

Profiled on my server, obviously.

Regex remove first character of three or lesser character words in a string

Without capturing groups,

(?<= |^)\+(?=\w{1,3}\b)

DEMO

Your final PHP code would be,

<?php
$string = '+a +string +of +words +with +different +lengths';
$pattern = "~(?<= |^)\+(?=\w{1,3}\b)~";
$replacement = "";
echo preg_replace($pattern, $replacement, $string);
?>

Output:

a +string of +words +with +different +lengths

Explanation:

(?<= |^)\+(?=\w{1,3}\b)

• (?<= |^) Positive lookbehind to look only after the starting point or space.
• \+ A literal + sign
• (?=\w{1,3}\b) The characters following the + sign must be (1 to 3) word characters which is again followed by a boundary charaqcter.

How to remove the leading character from a string?

To remove every : from the beginning of a string, you can use ltrim:

$str = '::f:o:';
$str = ltrim($str, ':');
var_dump($str); //=> 'f:o:'

How can i cut the first 11 characters from a string?

Read the manual.

substr($foto_filename, 11);

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