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Two implementation methods: 1. Use str_replace() to replace all single quotes in the string with empty characters, the syntax is "str_replace("'","", string)"; 2. Use preg_replace() to execute the regular expression "/\'/" to search for all single quotes in the string and replace them with empty characters. The syntax is "preg_replace("/\'/","", characters string)".
The operating environment of this tutorial: windows7 system, PHP version 8.1, DELL G3 computer
In php, you can use the str_replace() function Or preg_replace() function to remove single quotes in the string, just replace the single quotes in the string with null characters.
Method 1: Use the str_replace() function to replace single quotes in the string with empty characters
str_replace() function replaces some characters in the string (size-sensitive Write).
str_replace(find,replace,string,count)
| Parameters | Description |
|---|---|
| find | Required . Specifies the value to look for. |
| replace | Required. Specifies a value that replaces the value in find. |
| string | Required. Specifies the string to be searched for. |
| count | Optional. A variable counting the number of substitutions. |
# Just set the first parameter to a single quote "'" and the second parameter to a null character.
<?php
header('content-type:text/html;charset=utf-8');
$str = "My name is 'LiHua'，'20' years old！";
echo "原字符串：".$str."<br>";
$new = str_replace("'","",$str);
echo "去除单引号后：".$new;
?>Method 2: Use the preg_replace() function with the regular expression /\'/ to replace the single quotes in the string with Null character
preg_replace function performs a regular expression search and replace.
mixed preg_replace ( mixed $pattern , mixed $replacement , mixed $subject [, int $limit = -1 [, int &$count ]] )
Search for the part matching pattern in subject and replace it with replacement.
Parameter description:
$pattern: The pattern to be searched, which can be a string or a string array.
$replacement: String or array of strings used for replacement.
$subject: The target string or string array to be searched and replaced.
$limit: Optional, the maximum number of substitutions for each subject string per pattern. The default is -1 (no limit).
$count: Optional, the number of times the replacement is performed.
Just use the preg_replace() function to execute the regular expression /\'/ to search for all single quotes in the string and replace them with empty Just use the characters
<?php
header('content-type:text/html;charset=utf-8');
$str = "My name is 'LiHua'，'20' years old！";
echo "原字符串：".$str."<br>";
$new = preg_replace("/\'/","",$str);
echo "去除单引号后：".$new;
?>
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