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@@ -327,6 +327,20 @@ It is also possible to inline-alias a package constraint so that it matches
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a constraint that it otherwise would not. For more information [see the
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aliases article](articles/aliases.md).
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+`require` and `require-dev` also support references to specific PHP versions
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+and PHP extensions your project needs to run successfully.
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+
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+```json
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+Example:
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+
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+{
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+ "require" : {
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+ "php" : ">=5.3.10",
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+ "ext-mbstring": "*"
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+ }
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+}
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+```
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+
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#### require
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Lists packages required by this package. The package will not be installed
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=