Question

如何在每第n个宽度处插入一个字符作为字符串？

例如

$input = 'テスaトテaストa’;

// Insert 'x' every 5th width
$output = 'テスaxトテaxストax’;

Answer 1

您需要这个：

<?php
$input = "テスaトテaストa";

$tempStr = '';
$count = 0;

for ($i = 0; $i < strlen($input); $i++) {

    $currChar = $input[$i];
    $countTemp = mb_strwidth($currChar);

    $count = $count + $countTemp;

    if($count == 7){
        $tempStr = $tempStr.$currChar.'x';
        $count = 0;
    }
    else{
        $tempStr = $tempStr.$currChar;
    }
}    

echo $tempStr; // will print テスaxトテaxストax

另一种解决方案

<?php
function split($str, $len = 1) {
    $arr        = array();

    $length     = mb_strlen($str, 'UTF-8');

    for ($i = 0; $i < $length; $i += $len) {
        $arr[] = mb_substr($str, $i, $len, 'UTF-8');
    }

    return $arr;
}

$input = "テスaトテaストa";

$parts = split($input, 3);
$final = implode("x", $parts).'x';

echo $final; // will print テスaxトテaxストax

Answer 2

@haris莎玛怎么说，它的解决方案在How do I insert a string after every 50 words using php

中可用

$parts = str_split($input, 5);
$final = implode("x", $parts);

如何在第n个宽度处插入一个字符串字符串？

2 个答案: