The Str_split () function of the PHP string is used

Str_split

• (PHP 5, PHP 7)
• Str_split-convert a string to an array
• str_split-converting a string to an array

Description

arraystr_split($string[,$split_length1])//Converts a string to an array.//将一个字符串转换为数组。

Parametersstring

• The input string.
• The input string.

Split_length

• Maximum length of the chunk.
• The length of each paragraph.

Return Values

• If The optional split_length parameter is specified, the returned array would be broken down to chunks with each being SP Lit_length in length, otherwise chunk would be a character in length.
• If an optional split_length parameter is specified, each element in the returned array is a block of characters with a length of split_length, otherwise each word converts sequential blocks to a single character.
• FALSE is returned if split_length are less than 1. If the split_length length exceeds the length of string, the entire string is returned as the first (and only) array Eleme Nt.
• Returns FALSE if Split_length is less than 1. If the split_length parameter exceeds the length of string strings, the entire string is returned as an array of only one element.

Examples

<?php/*** Created by Phpstorm.* User:zhangrongxiang* DATE:2018/3/7* Time: PM 10:24 */$str="Hello World";//[0] = h; [1] = = e; [2] = = l; [3] = = l; [4] = = O; [5] = =; [6] = W; [7] = = O; [8] = R; [9] = = l; [Ten] = dPrint_r( Str_split( $str ) );/** [0] = he* [1] ~ = LL* [2] = = O* [3] = wo* [4] = = RL* [5] + = d */Print_r( Str_split( $str, 2 ) );/** [0] = = Hello* [1] = Worl* [2] + = d */Print_r( Str_split( $str, 5 ) );//php Warning:str_split (): The length of each segment must being greater than zero in file on line//print_r (Str_split ($str, -5));////////////////////////////////////////////////////////////////////////functionStr_split_unicode( $str, $l=0 ){if ( $l>0 ){$ret=Array();        $len=Mb_strlen( $str, "UTF-8" );         for ( $i=0; $i<$len; $i+=$l ){$ret[]=Mb_substr( $str, $i, $l, "UTF-8" );}return $ret;}return Preg_split( "//u", $str,-1, Preg_split_no_empty );}//[0] = one//[1] = Cut//[2] = All//[3] =//[4] = + piecesPrint_r(Str_split_unicode( "All Documents" ) );//[0] = everything//[1] = FilePrint_r(Str_split_unicode( "All Documents", 3 ) );//[0] = one?//[1] +???//[2] =//[3] = + piecesPrint_r( Str_split( "All Documents", 4 ) );////////////////////////////////////////////////////////////////$SPL 1=Str_split( "Long" );Echo Count( $SPL 1 ).Php_eol; //4//[0] = L//[1] = o//[2] = n//[3] = gPrint_r( $SPL 1 );$SPL 2=Str_split( "X" );//1Echo Count( $SPL 2 ).Php_eol;//[0] = XPrint_r( $SPL 2 );$SPL 3=Str_split( "" );Echo Count( $SPL 3 ).Php_eol;//1//[0] =Print_r( $SPL 3 );$SPL 4=Str_split(  at );Echo Count( $SPL 4 ).Php_eol;//2//[0] = 2//[1] = 3Print_r( $SPL 4 );$SPL 5=Str_split( 2.3 );Echo Count( $SPL 5 ).Php_eol;//3//[0] = 2//[1] =.//[2] = 3Print_r( $SPL 5 );$SPL 6=Str_split( true );Echo Count( $SPL 6 ).Php_eol;//1//[0] = 1Print_r( $SPL 6 );$SPL 7=Str_split( NULL );Echo Count( $SPL 7 ).Php_eol;//1//[0] =Print_r( $SPL 7 );

See

• http://php.net/manual/zh/function.str_split.php

All rights reserved

The Str_split () function of the PHP string is used