How to replace spaces with newlines in php

Replacement method: 1. Use the str_replace() function to replace, the syntax "str_replace(' ', "\n", $str)"; 2. Use the str_ireplace() function to replace, the syntax "str_ireplace( " ", "\n", $str)".

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

php replace spaces with newlines Method:

1. Use str_replace() function

<?php
$str = &#39;a b c&#39;;
// 空格替换成换行符(\n)
$str = str_replace(&#39; &#39;, "\n", $str);
// 显示字符
echo $str;
?>

Output:

a
b
c

Description:

str_replace() function replaces some characters in a string (case sensitive).

This function must follow the following rules:

• If the searched string is an array, then it will return an array.

• If the searched string is an array, then it will find and replace each element in the array.

• If an array needs to be searched and replaced at the same time, and the elements to be replaced are less than the number of found elements, the excess elements will be replaced with empty strings .

• If you search an array and replace only one string, the replacement string will work for all found values.

2. Use str_ireplace() function

<?php
$str = &#39;hello world !&#39;;
$search = " ";
$replace = "\n";
echo str_ireplace($search, $replace, $str);
?>

Output:

hello
world
!

Description:

str_ireplace () function replaces some characters in a string (case insensitive). The syntax is as follows:

str_ireplace(find,replace,string,count)

Parameter description:

• find Required. Specifies the value to look for.

• replace Required. Specifies the value to replace the value in find .

• #string Required. Specifies the string to be searched for.

• #count Optional. A variable counting the number of substitutions.

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