Exec time for the 3 answers :
Remove the first letter by replacing the case
$str = "hello";
$str[0] = "";
// $str[0] = false;
// $str[0] = null;
// replaced by �, but ok for echo
Exec time for 1.000.000 tests : 0.39602184295654 sec
Remove the first letter with substr[]
$str = "hello";
$str = substr[$str, 1];
Exec time for 1.000.000 tests : 5.153294801712 sec
Remove the first letter with ltrim[]
$str = "hello";
$str= ltrim [$str,'h'];
Exec time for 1.000.000 tests : 5.2393000125885 sec
Remove the first letter with preg_replace[]
$str = "hello";
$str = preg_replace['/^./', '', $str];
Exec time for 1.000.000 tests : 6.8543920516968 sec
PHPServer Side ProgrammingProgramming
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To remove the first character of a string in PHP, the code is as follows−
Example
Live Demo
Output
This will produce the following output −
Before removing the first character = Test After removing the first character = est
Example
Let us now see another example
Live Demo
Output
This will produce the following output−
Before removing the first character = Demo After removing the first character = emo
AmitDiwan
Updated on 27-Dec-2019 07:53:32
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In this tutorial, we will represent to you three main PHP functions used for removing the first character of a string.
Check out the examples and choose the one that suits more for your project.
The first PHP function that you can use for removing the first character of a string is Itrim[].
All you need to do is just to apply the code below:
$str = '::f:o:';
$str = ltrim[$str, ':'];
var_dump[$str]; //=> 'f:o:'The second way we recommend you to use is the substr[] function. Here is how to run it:
And the last handy function to use for removing the last character of a string is preg_replace[]:
$str = "hello";
$str = preg_replace['/^./', '', $str];The Itrim[] function is supported on PHP 4, PHP 5, and PHP 7 versions. This function is used for returning a string with whitespace stripped from the beginning of the string.
The substr[] is considered a built-in function in PHP, applied for extracting a part of a string.
It is capable of returning the extracted part of a string if successful. On failure, it will return either false or an empty string.
The preg_replace[] function is capable of returning a string or an array of strings. Here, all the matches of a pattern, detected in the output are replaced with substrings.