Example of replacing asterisks with digits in the middle of the php mobile phone number

Regular expression method 1. the string contains multiple mobile phone numbers. the code is as follows: & lt ;? Php $ s & amp; 39; manager Wang: 13999312365 manager Li: 13588958741 & amp; 39; $ spreg_replace (& amp; 39;

Regular expression method

1. the string contains multiple mobile phone numbers. the code is as follows:

2. $ S = 'manager Wang: 13999312365 manager Li: 13588958741 ';
3. $ S = preg_replace ('# (d {3}) d {5} (d {3 })#', '$ {1} ***** $ {2}', $ s );
4. Echo $ s;
5. // Manager Wang: 139 ***** 365 manager Li: 135 ***** 741
6. ?>

2. the string contains only one mobile phone number. the code is as follows:

2. $ Haoma = "15012345678 ";
3. Echo preg_replace ("/(d {3}) d {5}/", "$1 *****", $ haoma );
4. // 150 ***** 678
5. ?>

Implementation without regular expressions

1. use the substr_replace string to replace the function. the code is as follows:

2. USD string1 = "13264309555 ";
3. Echo substr_replace ($ string1 );
4. // 132 ***** 555
5. ?>

2. use the string truncation function substr. the code is as follows:

2. Echo substr ($ string1,). "*****". substr ($ string1 );
3. // 132 ***** 555
4. ?>