Php implementation code for deleting the first character in a string

Copy codeThe Code is as follows: $ a = "string ";
$ C = explode ("text to be deleted", $ a, 2 );
$ B = $ c [0]. $ c [1];

Explode
(PHP 3, PHP 4, PHP 5)

Explode -- use one string to separate another string
Description
Array explode (string separator, string [, int limit])

This function returns an array composed of strings. Each element is a substring of a string, which is separated by a string separator as a boundary point. If the limit parameter is set, the returned array contains up to limit elements, and the last element contains the rest of the string.
If separator is a null string (""), explode () returns FALSE. If the value of separator cannot be found in string, explode () returns an array containing a single string element.
If the limit parameter is negative, all elements except the last limit element are returned. This feature is added in PHP 5.1.0.
For historical reasons, although implode () can receive two parameter sequences, explode () cannot. You must ensure that the separator parameter is prior to the string parameter.

Note: The limit parameter is added to PHP 4.0.1.
Example 1. explode () ExampleCopy codeThe Code is as follows: <? Php
// Example 1
$ Pizza = "piece1 piece2 piece3 piece4 piece5 piece6 ";
$ Pieces = explode ("", $ pizza );
Echo $ pieces [0]; // piece1
Echo $ pieces [1]; // piece2

// Example 2
$ Data = "foo: *: 1023: 1000:/home/foo:/bin/sh ";
List ($ user, $ pass, $ uid, $ gid, $ gecos, $ home, $ shell) = explode (":", $ data );
Echo $ user; // foo
Echo $ pass ;//*
?>

Example 2. limit parameter exampleCopy codeThe Code is as follows: <? Php
$ Str = 'one | two | three | four ';
// Positive limit
Print_r (explode ('|', $ str, 2 ));
// Negative limit
Print_r (explode ('|', $ str,-1 ));
?>

The above example will be output:

Array
(
[0] => one
[1] => two | three | four
)
Array
(
[0] => one
[1] => two
[2] => three
)

Note: this function can be safely used for binary objects.