Question

我有代码：

$txt = "lookSTARTfromhereSTARTagainhere";

$disp = str_split($txt, 4); 

for ($b = 0; $b<3; $b++) {
    echo "$disp[$b]"; 
}

返回＆＃39; look＆＃39;，＆＃39; STAR＆＃39; ＆＃39; Tfor＆＃39;在＆{39; lookSTARTfromhereSTARTagainhere＆＃39;的文本行中我的问题是如何开始从＆＃39; START＆＃39;例如，＆＃39; lookSTARTfromhereSTARTagainhere＆＃39;的文本行的结果输出分手后看起来像from＆＃39; ＆＃39; here＆＃39; ＆＃39; again＆＃39;感谢您的时间和理解

Answer 1

如何从＆＃39; START＆＃39;
开始分割文字

只需使用explode和array_slice函数：

$txt = "lookSTARTfromhereSTARTagainhere";
$result = array_slice(explode('START', $txt), 1);

print_r($result);

输出：

Array
(
    [0] => fromhere
    [1] => againhere
)

Answer 2

str_split可能无法再次使用＆＃39;有5个字符。你可以从＆＃39;，＆＃39;这里＆＃39;通过以下代码。

$txt = "lookSTARTfromhereSTARTagainhere";
$txt = str_replace('look','',$txt);
$txt = str_replace('START','',$txt);
$disp = str_split($txt, 4); 
for ($b = 0; $b<3; $b++) {
    echo "$disp[$b]"; 
}

Answer 3

如果您的预期输出是从开始的四个字母单词，您可以在START上爆炸然后删除第一个项目并使用str_split将每个数组项目拆分为四个字母单词。

$txt = "lookSTARTfromhereSTARTagainhere";

$arr = explode("START", $txt); // Explode on START
unset($arr[0]); // first item is before START, we don't need that.
$res = [];
foreach($arr as $val){
    $temp = str_split($val, 4); // Split array item on four letters.
    $res = array_merge($res, $temp); // merge the new array with result array
}
var_dump($res);

https://3v4l.org/3BQ1b

Answer 4

<?php

$txt = "lookSTARTfromhereSTARTagainhere";

$split = explode("START",$txt);
unset($split[0]);

$first_str = str_split($split[1],4);
$t2 = str_split($split[2],5);

$second_str = $t2[0];

array_push($first_str,$second_str);

print_r($first_str);

?>

输出

数组（[0] =＆gt;来自[1] =＆gt;这里[2] =＆gt;再次）

如何在一些字符后启动文本str_split

4 个答案: