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Questions - preg-replace

Add leading zero to numeric strings containing decimal value if no leading number

I have about 200 lines in text file values can be like $array = ['.1','1.5','0.10','.8'....]; And I am looking specific regex pattern for replace .number like '.1' or '.8' preg_replace('/\.(\d+)/','...
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dodo

php

regex

preg-replace

number-formatting

leading-zero

Votes: 0

Answers: 4

Latest Answer

Using \.(\d+) will get a partial match in 1.5 and matches .5 Then the replacement will be the untouched 1 plus 0 plus .5 resulting in 10.5 You can replace the values that start with a dot, and match a...
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The fourth bird

PHP : how to replace numbers in a string with the exact given value

i have 2 arrays and a string: $attribute_ids = array(200,201); $attribute_names = array("David","Rimma"); $string = "200 2006-2009 boy, 201 girl"; $string = str_replace($...
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davidasor

php

preg-replace

str-replace

Votes: 0

Answers: 1

Latest Answer

Telling the difference between whole words and parts of a word sounds like a task for regexp, so here's my take(To be specific: Add regexp word boundaries \b for the patterns): $attribute_ids = array(...
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Torbjörn Stabo

Clean up a comma-separated list by regex

I want to clean up a tag list separated by comma to remove empty tags and extra spaces. I came up with $str='first , second ,, third, ,fourth suffix'; echo preg_replace('#[,]{2,}#',',',preg_replace(...
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Googlebot

php

regex

preg-replace

Votes: 0

Answers: 2

Latest Answer

You can use: [\h*([,\h])[,\h]* See an online demo. Or alternatively: \h*([,\h])(?1)* See an online demo \h* - 0+ (Greedy) horizontal-whitespace chars; ([,\h]) - A 1st capture group to match a comm...
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JvdV

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