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What is the character replacement function in php

Jul 11, 2020 pm 04:00 PM
php function character

The character replacement function in php is str_replace(). The str_replace() function is used to replace some characters in a string. This function is case-sensitive. Function syntax: [str_replace(find,replace,string,count)].

What is the character replacement function in php

#The character replacement function in php is str_replace().

(Recommended tutorial: php tutorial)

Function introduction:

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

Note: This function is case-sensitive.

Function syntax:

str_replace(find,replace,string,count)
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Parameter introduction:

  • 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.

Code implementation:

<?php
  //实例一:字符串替换字符串
  $str1 = str_replace("red","black","red green yellow pink purple");
  echo $str1."";  //输出结果为black green yellow pink purple
?>
<?php
  //实例二:字符串替换数组键值
  $arr = array("blue","red","green","yellow");
  $str1 = str_replace("red","pink",$arr,$i);
  print_r($str1);
?>
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